# encoding: utf-8 # module _io # from (built-in) # by generator 1.147 """ The io module provides the Python interfaces to stream handling. The builtin open function is defined in this module. At the top of the I/O hierarchy is the abstract base class IOBase. It defines the basic interface to a stream. Note, however, that there is no separation between reading and writing to streams; implementations are allowed to raise an OSError if they do not support a given operation. Extending IOBase is RawIOBase which deals simply with the reading and writing of raw bytes to a stream. FileIO subclasses RawIOBase to provide an interface to OS files. BufferedIOBase deals with buffering on a raw byte stream (RawIOBase). Its subclasses, BufferedWriter, BufferedReader, and BufferedRWPair buffer streams that are readable, writable, and both respectively. BufferedRandom provides a buffered interface to random access streams. BytesIO is a simple stream of in-memory bytes. Another IOBase subclass, TextIOBase, deals with the encoding and decoding of streams into text. TextIOWrapper, which extends it, is a buffered text interface to a buffered raw stream (`BufferedIOBase`). Finally, StringIO is an in-memory stream for text. Argument names are not part of the specification, and only the arguments of open() are intended to be used as keyword arguments. data: DEFAULT_BUFFER_SIZE An int containing the default buffer size used by the module's buffered I/O classes. open() uses the file's blksize (as obtained by os.stat) if possible. """ # no imports # Variables with simple values DEFAULT_BUFFER_SIZE = 8192 # functions def open(name, mode=None, buffering=None): # known case of _io.open """ Open file and return a stream. Raise OSError upon failure. file is either a text or byte string giving the name (and the path if the file isn't in the current working directory) of the file to be opened or an integer file descriptor of the file to be wrapped. (If a file descriptor is given, it is closed when the returned I/O object is closed, unless closefd is set to False.) mode is an optional string that specifies the mode in which the file is opened. It defaults to 'r' which means open for reading in text mode. Other common values are 'w' for writing (truncating the file if it already exists), 'x' for creating and writing to a new file, and 'a' for appending (which on some Unix systems, means that all writes append to the end of the file regardless of the current seek position). In text mode, if encoding is not specified the encoding used is platform dependent: locale.getencoding() is called to get the current locale encoding. (For reading and writing raw bytes use binary mode and leave encoding unspecified.) The available modes are: ========= =============================================================== Character Meaning --------- --------------------------------------------------------------- 'r' open for reading (default) 'w' open for writing, truncating the file first 'x' create a new file and open it for writing 'a' open for writing, appending to the end of the file if it exists 'b' binary mode 't' text mode (default) '+' open a disk file for updating (reading and writing) ========= =============================================================== The default mode is 'rt' (open for reading text). For binary random access, the mode 'w+b' opens and truncates the file to 0 bytes, while 'r+b' opens the file without truncation. The 'x' mode implies 'w' and raises an `FileExistsError` if the file already exists. Python distinguishes between files opened in binary and text modes, even when the underlying operating system doesn't. Files opened in binary mode (appending 'b' to the mode argument) return contents as bytes objects without any decoding. In text mode (the default, or when 't' is appended to the mode argument), the contents of the file are returned as strings, the bytes having been first decoded using a platform-dependent encoding or using the specified encoding if given. buffering is an optional integer used to set the buffering policy. Pass 0 to switch buffering off (only allowed in binary mode), 1 to select line buffering (only usable in text mode), and an integer > 1 to indicate the size of a fixed-size chunk buffer. When no buffering argument is given, the default buffering policy works as follows: * Binary files are buffered in fixed-size chunks; the size of the buffer is chosen using a heuristic trying to determine the underlying device's "block size" and falling back on `io.DEFAULT_BUFFER_SIZE`. On many systems, the buffer will typically be 4096 or 8192 bytes long. * "Interactive" text files (files for which isatty() returns True) use line buffering. Other text files use the policy described above for binary files. encoding is the name of the encoding used to decode or encode the file. This should only be used in text mode. The default encoding is platform dependent, but any encoding supported by Python can be passed. See the codecs module for the list of supported encodings. errors is an optional string that specifies how encoding errors are to be handled---this argument should not be used in binary mode. Pass 'strict' to raise a ValueError exception if there is an encoding error (the default of None has the same effect), or pass 'ignore' to ignore errors. (Note that ignoring encoding errors can lead to data loss.) See the documentation for codecs.register or run 'help(codecs.Codec)' for a list of the permitted encoding error strings. newline controls how universal newlines works (it only applies to text mode). It can be None, '', '\n', '\r', and '\r\n'. It works as follows: * On input, if newline is None, universal newlines mode is enabled. Lines in the input can end in '\n', '\r', or '\r\n', and these are translated into '\n' before being returned to the caller. If it is '', universal newline mode is enabled, but line endings are returned to the caller untranslated. If it has any of the other legal values, input lines are only terminated by the given string, and the line ending is returned to the caller untranslated. * On output, if newline is None, any '\n' characters written are translated to the system default line separator, os.linesep. If newline is '' or '\n', no translation takes place. If newline is any of the other legal values, any '\n' characters written are translated to the given string. If closefd is False, the underlying file descriptor will be kept open when the file is closed. This does not work when a file name is given and must be True in that case. A custom opener can be used by passing a callable as *opener*. The underlying file descriptor for the file object is then obtained by calling *opener* with (*file*, *flags*). *opener* must return an open file descriptor (passing os.open as *opener* results in functionality similar to passing None). open() returns a file object whose type depends on the mode, and through which the standard file operations such as reading and writing are performed. When open() is used to open a file in a text mode ('w', 'r', 'wt', 'rt', etc.), it returns a TextIOWrapper. When used to open a file in a binary mode, the returned class varies: in read binary mode, it returns a BufferedReader; in write binary and append binary modes, it returns a BufferedWriter, and in read/write mode, it returns a BufferedRandom. It is also possible to use a string or bytearray as a file for both reading and writing. For strings StringIO can be used like a file opened in a text mode, and for bytes a BytesIO can be used like a file opened in a binary mode. """ return file('/dev/null') def open_code(*args, **kwargs): # real signature unknown """ Opens the provided file with the intent to import the contents. This may perform extra validation beyond open(), but is otherwise interchangeable with calling open(path, 'rb'). """ pass def text_encoding(*args, **kwargs): # real signature unknown """ A helper function to choose the text encoding. When encoding is not None, this function returns it. Otherwise, this function returns the default text encoding (i.e. "locale" or "utf-8" depends on UTF-8 mode). This function emits an EncodingWarning if encoding is None and sys.flags.warn_default_encoding is true. This can be used in APIs with an encoding=None parameter. However, please consider using encoding="utf-8" for new APIs. """ pass # classes class BlockingIOError(OSError): """ I/O operation would block. """ def __init__(self, *args, **kwargs): # real signature unknown pass class _IOBase(object): """ The abstract base class for all I/O classes. This class provides dummy implementations for many methods that derived classes can override selectively; the default implementations represent a file that cannot be read, written or seeked. Even though IOBase does not declare read, readinto, or write because their signatures will vary, implementations and clients should consider those methods part of the interface. Also, implementations may raise UnsupportedOperation when operations they do not support are called. The basic type used for binary data read from or written to a file is bytes. Other bytes-like objects are accepted as method arguments too. In some cases (such as readinto), a writable object is required. Text I/O classes work with str data. Note that calling any method (except additional calls to close(), which are ignored) on a closed stream should raise a ValueError. IOBase (and its subclasses) support the iterator protocol, meaning that an IOBase object can be iterated over yielding the lines in a stream. IOBase also supports the :keyword:`with` statement. In this example, fp is closed after the suite of the with statement is complete: with open('spam.txt', 'r') as fp: fp.write('Spam and eggs!') """ def close(self, *args, **kwargs): # real signature unknown """ Flush and close the IO object. This method has no effect if the file is already closed. """ pass def fileno(self, *args, **kwargs): # real signature unknown """ Return underlying file descriptor if one exists. Raise OSError if the IO object does not use a file descriptor. """ pass def flush(self, *args, **kwargs): # real signature unknown """ Flush write buffers, if applicable. This is not implemented for read-only and non-blocking streams. """ pass def isatty(self, *args, **kwargs): # real signature unknown """ Return whether this is an 'interactive' stream. Return False if it can't be determined. """ pass def readable(self, *args, **kwargs): # real signature unknown """ Return whether object was opened for reading. If False, read() will raise OSError. """ pass def readline(self, *args, **kwargs): # real signature unknown """ Read and return a line from the stream. If size is specified, at most size bytes will be read. The line terminator is always b'\n' for binary files; for text files, the newlines argument to open can be used to select the line terminator(s) recognized. """ pass def readlines(self, *args, **kwargs): # real signature unknown """ Return a list of lines from the stream. hint can be specified to control the number of lines read: no more lines will be read if the total size (in bytes/characters) of all lines so far exceeds hint. """ pass def seek(self, *args, **kwargs): # real signature unknown """ Change the stream position to the given byte offset. offset The stream position, relative to 'whence'. whence The relative position to seek from. The offset is interpreted relative to the position indicated by whence. Values for whence are: * os.SEEK_SET or 0 -- start of stream (the default); offset should be zero or positive * os.SEEK_CUR or 1 -- current stream position; offset may be negative * os.SEEK_END or 2 -- end of stream; offset is usually negative Return the new absolute position. """ pass def seekable(self, *args, **kwargs): # real signature unknown """ Return whether object supports random access. If False, seek(), tell() and truncate() will raise OSError. This method may need to do a test seek(). """ pass def tell(self, *args, **kwargs): # real signature unknown """ Return current stream position. """ pass def truncate(self, *args, **kwargs): # real signature unknown """ Truncate file to size bytes. File pointer is left unchanged. Size defaults to the current IO position as reported by tell(). Return the new size. """ pass def writable(self, *args, **kwargs): # real signature unknown """ Return whether object was opened for writing. If False, write() will raise OSError. """ pass def writelines(self, *args, **kwargs): # real signature unknown """ Write a list of lines to stream. Line separators are not added, so it is usual for each of the lines provided to have a line separator at the end. """ pass def _checkClosed(self, *args, **kwargs): # real signature unknown pass def _checkReadable(self, *args, **kwargs): # real signature unknown pass def _checkSeekable(self, *args, **kwargs): # real signature unknown pass def _checkWritable(self, *args, **kwargs): # real signature unknown pass def __del__(self, *args, **kwargs): # real signature unknown """ Called when the instance is about to be destroyed. """ pass def __enter__(self, *args, **kwargs): # real signature unknown pass def __exit__(self, *args, **kwargs): # real signature unknown pass def __init__(self, *args, **kwargs): # real signature unknown pass def __iter__(self, *args, **kwargs): # real signature unknown """ Implement iter(self). """ pass def __next__(self, *args, **kwargs): # real signature unknown """ Implement next(self). """ pass closed = property(lambda self: object(), lambda self, v: None, lambda self: None) # default __dict__ = None # (!) real value is 'mappingproxy({\'__iter__\': , \'__next__\': , \'__del__\': , \'seek\': , \'tell\': , \'truncate\': , \'flush\': , \'close\': , \'seekable\': , \'readable\': , \'writable\': , \'_checkClosed\': , \'_checkSeekable\': , \'_checkReadable\': , \'_checkWritable\': , \'fileno\': , \'isatty\': , \'__enter__\': , \'__exit__\': , \'readline\': , \'readlines\': , \'writelines\': , \'__dict__\': , \'closed\': , \'__doc__\': "The abstract base class for all I/O classes.\\n\\nThis class provides dummy implementations for many methods that\\nderived classes can override selectively; the default implementations\\nrepresent a file that cannot be read, written or seeked.\\n\\nEven though IOBase does not declare read, readinto, or write because\\ntheir signatures will vary, implementations and clients should\\nconsider those methods part of the interface. Also, implementations\\nmay raise UnsupportedOperation when operations they do not support are\\ncalled.\\n\\nThe basic type used for binary data read from or written to a file is\\nbytes. Other bytes-like objects are accepted as method arguments too.\\nIn some cases (such as readinto), a writable object is required. Text\\nI/O classes work with str data.\\n\\nNote that calling any method (except additional calls to close(),\\nwhich are ignored) on a closed stream should raise a ValueError.\\n\\nIOBase (and its subclasses) support the iterator protocol, meaning\\nthat an IOBase object can be iterated over yielding the lines in a\\nstream.\\n\\nIOBase also supports the :keyword:`with` statement. In this example,\\nfp is closed after the suite of the with statement is complete:\\n\\nwith open(\'spam.txt\', \'r\') as fp:\\n fp.write(\'Spam and eggs!\')\\n", \'__module__\': \'_io\'})' class _BufferedIOBase(_IOBase): """ Base class for buffered IO objects. The main difference with RawIOBase is that the read() method supports omitting the size argument, and does not have a default implementation that defers to readinto(). In addition, read(), readinto() and write() may raise BlockingIOError if the underlying raw stream is in non-blocking mode and not ready; unlike their raw counterparts, they will never return None. A typical implementation should not inherit from a RawIOBase implementation, but wrap one. """ def detach(self, *args, **kwargs): # real signature unknown """ Disconnect this buffer from its underlying raw stream and return it. After the raw stream has been detached, the buffer is in an unusable state. """ pass def read(self, *args, **kwargs): # real signature unknown """ Read and return up to n bytes. If the size argument is omitted, None, or negative, read and return all data until EOF. If the size argument is positive, and the underlying raw stream is not 'interactive', multiple raw reads may be issued to satisfy the byte count (unless EOF is reached first). However, for interactive raw streams (as well as sockets and pipes), at most one raw read will be issued, and a short result does not imply that EOF is imminent. Return an empty bytes object on EOF. Return None if the underlying raw stream was open in non-blocking mode and no data is available at the moment. """ pass def read1(self, *args, **kwargs): # real signature unknown """ Read and return up to size bytes, with at most one read() call to the underlying raw stream. Return an empty bytes object on EOF. A short result does not imply that EOF is imminent. """ pass def readinto(self, *args, **kwargs): # real signature unknown pass def readinto1(self, *args, **kwargs): # real signature unknown pass def write(self, *args, **kwargs): # real signature unknown """ Write buffer b to the IO stream. Return the number of bytes written, which is always the length of b in bytes. Raise BlockingIOError if the buffer is full and the underlying raw stream cannot accept more data at the moment. """ pass def __init__(self, *args, **kwargs): # real signature unknown pass class BufferedRandom(_BufferedIOBase): """ A buffered interface to random access streams. The constructor creates a reader and writer for a seekable stream, raw, given in the first argument. If the buffer_size is omitted it defaults to DEFAULT_BUFFER_SIZE. """ def close(self, *args, **kwargs): # real signature unknown pass def detach(self, *args, **kwargs): # real signature unknown pass def fileno(self, *args, **kwargs): # real signature unknown pass def flush(self, *args, **kwargs): # real signature unknown pass def isatty(self, *args, **kwargs): # real signature unknown pass def peek(self, *args, **kwargs): # real signature unknown pass def read(self, *args, **kwargs): # real signature unknown pass def read1(self, *args, **kwargs): # real signature unknown pass def readable(self, *args, **kwargs): # real signature unknown pass def readinto(self, *args, **kwargs): # real signature unknown pass def readinto1(self, *args, **kwargs): # real signature unknown pass def readline(self, *args, **kwargs): # real signature unknown pass def seek(self, *args, **kwargs): # real signature unknown pass def seekable(self, *args, **kwargs): # real signature unknown pass def tell(self, *args, **kwargs): # real signature unknown pass def truncate(self, *args, **kwargs): # real signature unknown pass def writable(self, *args, **kwargs): # real signature unknown pass def write(self, *args, **kwargs): # real signature unknown pass def _dealloc_warn(self, *args, **kwargs): # real signature unknown pass def __init__(self, *args, **kwargs): # real signature unknown pass def __next__(self, *args, **kwargs): # real signature unknown """ Implement next(self). """ pass def __reduce_ex__(self, *args, **kwargs): # real signature unknown pass def __reduce__(self, *args, **kwargs): # real signature unknown pass def __repr__(self, *args, **kwargs): # real signature unknown """ Return repr(self). """ pass def __sizeof__(self, *args, **kwargs): # real signature unknown pass closed = property(lambda self: object(), lambda self, v: None, lambda self: None) # default mode = property(lambda self: object(), lambda self, v: None, lambda self: None) # default name = property(lambda self: object(), lambda self, v: None, lambda self: None) # default raw = property(lambda self: object(), lambda self, v: None, lambda self: None) # default _finalizing = property(lambda self: object(), lambda self, v: None, lambda self: None) # default class BufferedReader(_BufferedIOBase): """ Create a new buffered reader using the given readable raw IO object. """ def close(self, *args, **kwargs): # real signature unknown pass def detach(self, *args, **kwargs): # real signature unknown pass def fileno(self, *args, **kwargs): # real signature unknown pass def flush(self, *args, **kwargs): # real signature unknown pass def isatty(self, *args, **kwargs): # real signature unknown pass def peek(self, *args, **kwargs): # real signature unknown pass def read(self, *args, **kwargs): # real signature unknown pass def read1(self, *args, **kwargs): # real signature unknown pass def readable(self, *args, **kwargs): # real signature unknown pass def readinto(self, *args, **kwargs): # real signature unknown pass def readinto1(self, *args, **kwargs): # real signature unknown pass def readline(self, *args, **kwargs): # real signature unknown pass def seek(self, *args, **kwargs): # real signature unknown pass def seekable(self, *args, **kwargs): # real signature unknown pass def tell(self, *args, **kwargs): # real signature unknown pass def truncate(self, *args, **kwargs): # real signature unknown pass def _dealloc_warn(self, *args, **kwargs): # real signature unknown pass def __init__(self, *args, **kwargs): # real signature unknown pass def __next__(self, *args, **kwargs): # real signature unknown """ Implement next(self). """ pass def __reduce_ex__(self, *args, **kwargs): # real signature unknown pass def __reduce__(self, *args, **kwargs): # real signature unknown pass def __repr__(self, *args, **kwargs): # real signature unknown """ Return repr(self). """ pass def __sizeof__(self, *args, **kwargs): # real signature unknown pass closed = property(lambda self: object(), lambda self, v: None, lambda self: None) # default mode = property(lambda self: object(), lambda self, v: None, lambda self: None) # default name = property(lambda self: object(), lambda self, v: None, lambda self: None) # default raw = property(lambda self: object(), lambda self, v: None, lambda self: None) # default _finalizing = property(lambda self: object(), lambda self, v: None, lambda self: None) # default class BufferedRWPair(_BufferedIOBase): """ A buffered reader and writer object together. A buffered reader object and buffered writer object put together to form a sequential IO object that can read and write. This is typically used with a socket or two-way pipe. reader and writer are RawIOBase objects that are readable and writeable respectively. If the buffer_size is omitted it defaults to DEFAULT_BUFFER_SIZE. """ def close(self, *args, **kwargs): # real signature unknown pass def flush(self, *args, **kwargs): # real signature unknown pass def isatty(self, *args, **kwargs): # real signature unknown pass def peek(self, *args, **kwargs): # real signature unknown pass def read(self, *args, **kwargs): # real signature unknown pass def read1(self, *args, **kwargs): # real signature unknown pass def readable(self, *args, **kwargs): # real signature unknown pass def readinto(self, *args, **kwargs): # real signature unknown pass def readinto1(self, *args, **kwargs): # real signature unknown pass def writable(self, *args, **kwargs): # real signature unknown pass def write(self, *args, **kwargs): # real signature unknown pass def __init__(self, *args, **kwargs): # real signature unknown pass closed = property(lambda self: object(), lambda self, v: None, lambda self: None) # default class BufferedWriter(_BufferedIOBase): """ A buffer for a writeable sequential RawIO object. The constructor creates a BufferedWriter for the given writeable raw stream. If the buffer_size is not given, it defaults to DEFAULT_BUFFER_SIZE. """ def close(self, *args, **kwargs): # real signature unknown pass def detach(self, *args, **kwargs): # real signature unknown pass def fileno(self, *args, **kwargs): # real signature unknown pass def flush(self, *args, **kwargs): # real signature unknown pass def isatty(self, *args, **kwargs): # real signature unknown pass def seek(self, *args, **kwargs): # real signature unknown pass def seekable(self, *args, **kwargs): # real signature unknown pass def tell(self, *args, **kwargs): # real signature unknown pass def truncate(self, *args, **kwargs): # real signature unknown pass def writable(self, *args, **kwargs): # real signature unknown pass def write(self, *args, **kwargs): # real signature unknown pass def _dealloc_warn(self, *args, **kwargs): # real signature unknown pass def __init__(self, *args, **kwargs): # real signature unknown pass def __reduce_ex__(self, *args, **kwargs): # real signature unknown pass def __reduce__(self, *args, **kwargs): # real signature unknown pass def __repr__(self, *args, **kwargs): # real signature unknown """ Return repr(self). """ pass def __sizeof__(self, *args, **kwargs): # real signature unknown pass closed = property(lambda self: object(), lambda self, v: None, lambda self: None) # default mode = property(lambda self: object(), lambda self, v: None, lambda self: None) # default name = property(lambda self: object(), lambda self, v: None, lambda self: None) # default raw = property(lambda self: object(), lambda self, v: None, lambda self: None) # default _finalizing = property(lambda self: object(), lambda self, v: None, lambda self: None) # default class BytesIO(_BufferedIOBase): """ Buffered I/O implementation using an in-memory bytes buffer. """ def close(self, *args, **kwargs): # real signature unknown """ Disable all I/O operations. """ pass def flush(self, *args, **kwargs): # real signature unknown """ Does nothing. """ pass def getbuffer(self, *args, **kwargs): # real signature unknown """ Get a read-write view over the contents of the BytesIO object. """ pass def getvalue(self, *args, **kwargs): # real signature unknown """ Retrieve the entire contents of the BytesIO object. """ pass def isatty(self, *args, **kwargs): # real signature unknown """ Always returns False. BytesIO objects are not connected to a TTY-like device. """ pass def read(self, *args, **kwargs): # real signature unknown """ Read at most size bytes, returned as a bytes object. If the size argument is negative, read until EOF is reached. Return an empty bytes object at EOF. """ pass def read1(self, *args, **kwargs): # real signature unknown """ Read at most size bytes, returned as a bytes object. If the size argument is negative or omitted, read until EOF is reached. Return an empty bytes object at EOF. """ pass def readable(self, *args, **kwargs): # real signature unknown """ Returns True if the IO object can be read. """ pass def readinto(self, *args, **kwargs): # real signature unknown """ Read bytes into buffer. Returns number of bytes read (0 for EOF), or None if the object is set not to block and has no data to read. """ pass def readline(self, *args, **kwargs): # real signature unknown """ Next line from the file, as a bytes object. Retain newline. A non-negative size argument limits the maximum number of bytes to return (an incomplete line may be returned then). Return an empty bytes object at EOF. """ pass def readlines(self, *args, **kwargs): # real signature unknown """ List of bytes objects, each a line from the file. Call readline() repeatedly and return a list of the lines so read. The optional size argument, if given, is an approximate bound on the total number of bytes in the lines returned. """ pass def seek(self, *args, **kwargs): # real signature unknown """ Change stream position. Seek to byte offset pos relative to position indicated by whence: 0 Start of stream (the default). pos should be >= 0; 1 Current position - pos may be negative; 2 End of stream - pos usually negative. Returns the new absolute position. """ pass def seekable(self, *args, **kwargs): # real signature unknown """ Returns True if the IO object can be seeked. """ pass def tell(self, *args, **kwargs): # real signature unknown """ Current file position, an integer. """ pass def truncate(self, *args, **kwargs): # real signature unknown """ Truncate the file to at most size bytes. Size defaults to the current file position, as returned by tell(). The current file position is unchanged. Returns the new size. """ pass def writable(self, *args, **kwargs): # real signature unknown """ Returns True if the IO object can be written. """ pass def write(self, *args, **kwargs): # real signature unknown """ Write bytes to file. Return the number of bytes written. """ pass def writelines(self, *args, **kwargs): # real signature unknown """ Write lines to the file. Note that newlines are not added. lines can be any iterable object producing bytes-like objects. This is equivalent to calling write() for each element. """ pass def __getstate__(self, *args, **kwargs): # real signature unknown pass def __init__(self, *args, **kwargs): # real signature unknown pass def __iter__(self, *args, **kwargs): # real signature unknown """ Implement iter(self). """ pass @staticmethod # known case of __new__ def __new__(*args, **kwargs): # real signature unknown """ Create and return a new object. See help(type) for accurate signature. """ pass def __next__(self, *args, **kwargs): # real signature unknown """ Implement next(self). """ pass def __setstate__(self, *args, **kwargs): # real signature unknown pass def __sizeof__(self, *args, **kwargs): # real signature unknown pass closed = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """True if the file is closed.""" class _RawIOBase(_IOBase): """ Base class for raw binary I/O. """ def read(self, *args, **kwargs): # real signature unknown pass def readall(self, *args, **kwargs): # real signature unknown """ Read until EOF, using multiple read() call. """ pass def readinto(self, *args, **kwargs): # real signature unknown pass def write(self, *args, **kwargs): # real signature unknown pass def __init__(self, *args, **kwargs): # real signature unknown pass class FileIO(_RawIOBase): """ Open a file. The mode can be 'r' (default), 'w', 'x' or 'a' for reading, writing, exclusive creation or appending. The file will be created if it doesn't exist when opened for writing or appending; it will be truncated when opened for writing. A FileExistsError will be raised if it already exists when opened for creating. Opening a file for creating implies writing so this mode behaves in a similar way to 'w'.Add a '+' to the mode to allow simultaneous reading and writing. A custom opener can be used by passing a callable as *opener*. The underlying file descriptor for the file object is then obtained by calling opener with (*name*, *flags*). *opener* must return an open file descriptor (passing os.open as *opener* results in functionality similar to passing None). """ def close(self): # real signature unknown; restored from __doc__ """ Close the file. A closed file cannot be used for further I/O operations. close() may be called more than once without error. """ pass def fileno(self, *args, **kwargs): # real signature unknown """ Return the underlying file descriptor (an integer). """ pass def isatty(self, *args, **kwargs): # real signature unknown """ True if the file is connected to a TTY device. """ pass def read(self, size=-1): # known case of _io.FileIO.read """ Read at most size bytes, returned as bytes. Only makes one system call, so less data may be returned than requested. In non-blocking mode, returns None if no data is available. Return an empty bytes object at EOF. """ return "" def readable(self, *args, **kwargs): # real signature unknown """ True if file was opened in a read mode. """ pass def readall(self, *args, **kwargs): # real signature unknown """ Read all data from the file, returned as bytes. In non-blocking mode, returns as much as is immediately available, or None if no data is available. Return an empty bytes object at EOF. """ pass def readinto(self): # real signature unknown; restored from __doc__ """ Same as RawIOBase.readinto(). """ pass def seek(self, *args, **kwargs): # real signature unknown """ Move to new file position and return the file position. Argument offset is a byte count. Optional argument whence defaults to SEEK_SET or 0 (offset from start of file, offset should be >= 0); other values are SEEK_CUR or 1 (move relative to current position, positive or negative), and SEEK_END or 2 (move relative to end of file, usually negative, although many platforms allow seeking beyond the end of a file). Note that not all file objects are seekable. """ pass def seekable(self, *args, **kwargs): # real signature unknown """ True if file supports random-access. """ pass def tell(self, *args, **kwargs): # real signature unknown """ Current file position. Can raise OSError for non seekable files. """ pass def truncate(self, *args, **kwargs): # real signature unknown """ Truncate the file to at most size bytes and return the truncated size. Size defaults to the current file position, as returned by tell(). The current file position is changed to the value of size. """ pass def writable(self, *args, **kwargs): # real signature unknown """ True if file was opened in a write mode. """ pass def write(self, *args, **kwargs): # real signature unknown """ Write buffer b to file, return number of bytes written. Only makes one system call, so not all of the data may be written. The number of bytes actually written is returned. In non-blocking mode, returns None if the write would block. """ pass def _dealloc_warn(self, *args, **kwargs): # real signature unknown pass def __init__(self, *args, **kwargs): # real signature unknown pass @staticmethod # known case of __new__ def __new__(*args, **kwargs): # real signature unknown """ Create and return a new object. See help(type) for accurate signature. """ pass def __reduce_ex__(self, *args, **kwargs): # real signature unknown pass def __reduce__(self, *args, **kwargs): # real signature unknown pass def __repr__(self, *args, **kwargs): # real signature unknown """ Return repr(self). """ pass closed = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """True if the file is closed""" closefd = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """True if the file descriptor will be closed by close().""" mode = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """String giving the file mode""" _blksize = property(lambda self: object(), lambda self, v: None, lambda self: None) # default _finalizing = property(lambda self: object(), lambda self, v: None, lambda self: None) # default class IncrementalNewlineDecoder(object): """ Codec used when reading a file in universal newlines mode. It wraps another incremental decoder, translating \r\n and \r into \n. It also records the types of newlines encountered. When used with translate=False, it ensures that the newline sequence is returned in one piece. When used with decoder=None, it expects unicode strings as decode input and translates newlines without first invoking an external decoder. """ def decode(self, *args, **kwargs): # real signature unknown pass def getstate(self, *args, **kwargs): # real signature unknown pass def reset(self, *args, **kwargs): # real signature unknown pass def setstate(self, *args, **kwargs): # real signature unknown pass def __init__(self, *args, **kwargs): # real signature unknown pass newlines = property(lambda self: object(), lambda self, v: None, lambda self: None) # default class _TextIOBase(_IOBase): """ Base class for text I/O. This class provides a character and line based interface to stream I/O. There is no readinto method because Python's character strings are immutable. """ def detach(self, *args, **kwargs): # real signature unknown """ Separate the underlying buffer from the TextIOBase and return it. After the underlying buffer has been detached, the TextIO is in an unusable state. """ pass def read(self, *args, **kwargs): # real signature unknown """ Read at most size characters from stream. Read from underlying buffer until we have size characters or we hit EOF. If size is negative or omitted, read until EOF. """ pass def readline(self, *args, **kwargs): # real signature unknown """ Read until newline or EOF. Return an empty string if EOF is hit immediately. If size is specified, at most size characters will be read. """ pass def write(self, *args, **kwargs): # real signature unknown """ Write string s to stream. Return the number of characters written (which is always equal to the length of the string). """ pass def __init__(self, *args, **kwargs): # real signature unknown pass encoding = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """Encoding of the text stream. Subclasses should override.""" errors = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """The error setting of the decoder or encoder. Subclasses should override.""" newlines = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """Line endings translated so far. Only line endings translated during reading are considered. Subclasses should override.""" class StringIO(_TextIOBase): """ Text I/O implementation using an in-memory buffer. The initial_value argument sets the value of object. The newline argument is like the one of TextIOWrapper's constructor. """ def close(self, *args, **kwargs): # real signature unknown """ Close the IO object. Attempting any further operation after the object is closed will raise a ValueError. This method has no effect if the file is already closed. """ pass def getvalue(self, *args, **kwargs): # real signature unknown """ Retrieve the entire contents of the object. """ pass def read(self, *args, **kwargs): # real signature unknown """ Read at most size characters, returned as a string. If the argument is negative or omitted, read until EOF is reached. Return an empty string at EOF. """ pass def readable(self, *args, **kwargs): # real signature unknown """ Returns True if the IO object can be read. """ pass def readline(self, *args, **kwargs): # real signature unknown """ Read until newline or EOF. Returns an empty string if EOF is hit immediately. """ pass def seek(self, *args, **kwargs): # real signature unknown """ Change stream position. Seek to character offset pos relative to position indicated by whence: 0 Start of stream (the default). pos should be >= 0; 1 Current position - pos must be 0; 2 End of stream - pos must be 0. Returns the new absolute position. """ pass def seekable(self, *args, **kwargs): # real signature unknown """ Returns True if the IO object can be seeked. """ pass def tell(self, *args, **kwargs): # real signature unknown """ Tell the current file position. """ pass def truncate(self, *args, **kwargs): # real signature unknown """ Truncate size to pos. The pos argument defaults to the current file position, as returned by tell(). The current file position is unchanged. Returns the new absolute position. """ pass def writable(self, *args, **kwargs): # real signature unknown """ Returns True if the IO object can be written. """ pass def write(self, *args, **kwargs): # real signature unknown """ Write string to file. Returns the number of characters written, which is always equal to the length of the string. """ pass def __getstate__(self, *args, **kwargs): # real signature unknown pass def __init__(self, *args, **kwargs): # real signature unknown pass @staticmethod # known case of __new__ def __new__(*args, **kwargs): # real signature unknown """ Create and return a new object. See help(type) for accurate signature. """ pass def __next__(self, *args, **kwargs): # real signature unknown """ Implement next(self). """ pass def __setstate__(self, *args, **kwargs): # real signature unknown pass closed = property(lambda self: object(), lambda self, v: None, lambda self: None) # default line_buffering = property(lambda self: object(), lambda self, v: None, lambda self: None) # default newlines = property(lambda self: object(), lambda self, v: None, lambda self: None) # default class TextIOWrapper(_TextIOBase): """ Character and line based layer over a BufferedIOBase object, buffer. encoding gives the name of the encoding that the stream will be decoded or encoded with. It defaults to locale.getencoding(). errors determines the strictness of encoding and decoding (see help(codecs.Codec) or the documentation for codecs.register) and defaults to "strict". newline controls how line endings are handled. It can be None, '', '\n', '\r', and '\r\n'. It works as follows: * On input, if newline is None, universal newlines mode is enabled. Lines in the input can end in '\n', '\r', or '\r\n', and these are translated into '\n' before being returned to the caller. If it is '', universal newline mode is enabled, but line endings are returned to the caller untranslated. If it has any of the other legal values, input lines are only terminated by the given string, and the line ending is returned to the caller untranslated. * On output, if newline is None, any '\n' characters written are translated to the system default line separator, os.linesep. If newline is '' or '\n', no translation takes place. If newline is any of the other legal values, any '\n' characters written are translated to the given string. If line_buffering is True, a call to flush is implied when a call to write contains a newline character. """ def close(self, *args, **kwargs): # real signature unknown pass def detach(self, *args, **kwargs): # real signature unknown pass def fileno(self, *args, **kwargs): # real signature unknown pass def flush(self, *args, **kwargs): # real signature unknown pass def isatty(self, *args, **kwargs): # real signature unknown pass def read(self, *args, **kwargs): # real signature unknown pass def readable(self, *args, **kwargs): # real signature unknown pass def readline(self, *args, **kwargs): # real signature unknown pass def reconfigure(self, *args, **kwargs): # real signature unknown """ Reconfigure the text stream with new parameters. This also does an implicit stream flush. """ pass def seek(self, *args, **kwargs): # real signature unknown; NOTE: unreliably restored from __doc__ """ Set the stream position, and return the new stream position. cookie Zero or an opaque number returned by tell(). whence The relative position to seek from. Four operations are supported, given by the following argument combinations: - seek(0, SEEK_SET): Rewind to the start of the stream. - seek(cookie, SEEK_SET): Restore a previous position; 'cookie' must be a number returned by tell(). - seek(0, SEEK_END): Fast-forward to the end of the stream. - seek(0, SEEK_CUR): Leave the current stream position unchanged. Any other argument combinations are invalid, and may raise exceptions. """ pass def seekable(self, *args, **kwargs): # real signature unknown pass def tell(self): # real signature unknown; restored from __doc__ """ Return the stream position as an opaque number. The return value of tell() can be given as input to seek(), to restore a previous stream position. """ pass def truncate(self, *args, **kwargs): # real signature unknown pass def writable(self, *args, **kwargs): # real signature unknown pass def write(self, *args, **kwargs): # real signature unknown pass def __init__(self, *args, **kwargs): # real signature unknown pass def __next__(self, *args, **kwargs): # real signature unknown """ Implement next(self). """ pass def __reduce_ex__(self, *args, **kwargs): # real signature unknown pass def __reduce__(self, *args, **kwargs): # real signature unknown pass def __repr__(self, *args, **kwargs): # real signature unknown """ Return repr(self). """ pass buffer = property(lambda self: object(), lambda self, v: None, lambda self: None) # default closed = property(lambda self: object(), lambda self, v: None, lambda self: None) # default encoding = property(lambda self: object(), lambda self, v: None, lambda self: None) # default errors = property(lambda self: object(), lambda self, v: None, lambda self: None) # default line_buffering = property(lambda self: object(), lambda self, v: None, lambda self: None) # default name = property(lambda self: object(), lambda self, v: None, lambda self: None) # default newlines = property(lambda self: object(), lambda self, v: None, lambda self: None) # default write_through = property(lambda self: object(), lambda self, v: None, lambda self: None) # default _CHUNK_SIZE = property(lambda self: object(), lambda self, v: None, lambda self: None) # default _finalizing = property(lambda self: object(), lambda self, v: None, lambda self: None) # default class UnsupportedOperation(OSError, ValueError): # no doc def __init__(self, *args, **kwargs): # real signature unknown pass __weakref__ = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """list of weak references to the object""" class _BytesIOBuffer(object): # no doc def __buffer__(self, *args, **kwargs): # real signature unknown """ Return a buffer object that exposes the underlying memory of the object. """ pass def __init__(self, *args, **kwargs): # real signature unknown pass def __release_buffer__(self, *args, **kwargs): # real signature unknown """ Release the buffer object that exposes the underlying memory of the object. """ pass class _WindowsConsoleIO(_RawIOBase): """ Open a console buffer by file descriptor. The mode can be 'rb' (default), or 'wb' for reading or writing bytes. All other mode characters will be ignored. Mode 'b' will be assumed if it is omitted. The *opener* parameter is always ignored. """ def close(self): # real signature unknown; restored from __doc__ """ Close the console object. A closed console object cannot be used for further I/O operations. close() may be called more than once without error. """ pass def fileno(self, *args, **kwargs): # real signature unknown """ Return the underlying file descriptor (an integer). """ pass def isatty(self, *args, **kwargs): # real signature unknown """ Always True. """ pass def read(self, *args, **kwargs): # real signature unknown """ Read at most size bytes, returned as bytes. Only makes one system call when size is a positive integer, so less data may be returned than requested. Return an empty bytes object at EOF. """ pass def readable(self, *args, **kwargs): # real signature unknown """ True if console is an input buffer. """ pass def readall(self, *args, **kwargs): # real signature unknown """ Read all data from the console, returned as bytes. Return an empty bytes object at EOF. """ pass def readinto(self): # real signature unknown; restored from __doc__ """ Same as RawIOBase.readinto(). """ pass def writable(self, *args, **kwargs): # real signature unknown """ True if console is an output buffer. """ pass def write(self, *args, **kwargs): # real signature unknown """ Write buffer b to file, return number of bytes written. Only makes one system call, so not all of the data may be written. The number of bytes actually written is returned. """ pass def __getattribute__(self, *args, **kwargs): # real signature unknown """ Return getattr(self, name). """ pass def __init__(self, *args, **kwargs): # real signature unknown pass @staticmethod # known case of __new__ def __new__(*args, **kwargs): # real signature unknown """ Create and return a new object. See help(type) for accurate signature. """ pass def __repr__(self, *args, **kwargs): # real signature unknown """ Return repr(self). """ pass closed = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """True if the file is closed""" closefd = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """True if the file descriptor will be closed by close().""" mode = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """String giving the file mode""" _blksize = property(lambda self: object(), lambda self, v: None, lambda self: None) # default _finalizing = property(lambda self: object(), lambda self, v: None, lambda self: None) # default class __loader__(object): """ Meta path import for built-in modules. All methods are either class or static methods to avoid the need to instantiate the class. """ def create_module(spec): # reliably restored by inspect """ Create a built-in module """ pass def exec_module(module): # reliably restored by inspect """ Exec a built-in module """ pass @classmethod def find_spec(cls, *args, **kwargs): # real signature unknown pass @classmethod def get_code(cls, *args, **kwargs): # real signature unknown """ Return None as built-in modules do not have code objects. """ pass @classmethod def get_source(cls, *args, **kwargs): # real signature unknown """ Return None as built-in modules do not have source code. """ pass @classmethod def is_package(cls, *args, **kwargs): # real signature unknown """ Return False as built-in modules are never packages. """ pass @classmethod def load_module(cls, *args, **kwargs): # real signature unknown """ Load the specified module into sys.modules and return it. This method is deprecated. Use loader.exec_module() instead. """ pass def __init__(self, *args, **kwargs): # real signature unknown pass __weakref__ = property(lambda self: object(), lambda self, v: None, lambda self: None) # default """list of weak references to the object""" _ORIGIN = 'built-in' __dict__ = None # (!) real value is "mappingproxy({'__module__': '_frozen_importlib', '__firstlineno__': 971, '__doc__': 'Meta path import for built-in modules.\\n\\nAll methods are either class or static methods to avoid the need to\\ninstantiate the class.\\n\\n', '_ORIGIN': 'built-in', 'find_spec': )>, 'create_module': )>, 'exec_module': )>, 'get_code': )>, 'get_source': )>, 'is_package': )>, 'load_module': )>, '__static_attributes__': (), '__dict__': , '__weakref__': })" __firstlineno__ = 971 __static_attributes__ = () # variables with complex values __spec__ = None # (!) real value is "ModuleSpec(name='_io', loader=, origin='built-in')"