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Python implementation of the io module.
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iÿÿÿÿ( t print_functiont unicode_literalsN( t allocate_lock( t __all__t SEEK_SETt SEEK_CURt SEEK_END( t EINTRi i t BlockingIOErrorc B s e Z d Z d d Z RS( uC Exception raised when I/O would block on a non-blocking I/O stream.i c C sJ t t | j | | t | t t f s= t d n | | _ d S( Nu$ characters_written must be a integer( t supert IOErrort __init__t
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r´t | | } n( | rÌt | | } n t d | | ræ| St | | | | | } | | _ | S( uö Open file and return a stream. Raise IOError 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), 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. (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
|
'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)
|
'U' universal newline mode (for backwards compatibility; unneeded
|
for new code)
|
========= ===============================================================
|
|
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.
|
|
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 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 '', 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.
|
|
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.
|
u invalid file: %ru invalid mode: %ru invalid buffering: %ru invalid encoding: %ru invalid errors: %ru arwb+tUu ru wu au +u tu bu Uu$ can't use U and writing mode at onceu' can't have text and binary mode at oncei u) can't have read/write/append mode at onceu/ must have exactly one of read/write/append modeu- binary mode doesn't take an encoding argumentu+ binary mode doesn't take an errors argumentu+ binary mode doesn't take a newline argumentu i iÿÿÿÿu invalid buffering sizeu can't have unbuffered text I/Ou unknown mode: %rN( R t
|
basestringR R R t Nonet sett lent
|
ValueErrort Truet FileIOt Falset isattyt DEFAULT_BUFFER_SIZEt ost fstatt filenot
|
st_blksizet errort AttributeErrort BufferedRandomt BufferedWritert BufferedReadert TextIOWrappert mode( t fileR+ t bufferingt encodingt errorst newlinet closefdt modest readingt writingt appendingt updatingt textt binaryt rawt line_bufferingt bst buffer( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt open+ s o ( / $ t DocDescriptorc B s e Z d Z d Z RS( u% Helper for builtins.open.__doc__
|
c C s d t j S( Nu\ open(file, mode='r', buffering=-1, encoding=None, errors=None, newline=None, closefd=True)
|
|
( R= R ( R t objt typ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt __get__è s ( R R R RA ( ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyR> å s t OpenWrapperc B s e Z d Z e Z d Z RS( u¶ Wrapper for builtins.open
|
|
Trick so that open won't become a bound method when stored
|
as a class variable (as dbm.dumb does).
|
|
See initstdio() in Python/pythonrun.c.
|
c O s t | | S( N( R= ( t clst argst kwargs( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt __new__ø s ( R R R R> RF ( ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyRB î s t UnsupportedOperationc B s e Z RS( ( R R ( ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyRG ü s t IOBasec B s e Z e j Z d Z d d Z d Z d d Z d Z
|
e Z d Z d Z d Z d d Z d
|
Z d d Z d Z d d Z e d Z d d Z d Z d Z d Z d Z d d Z d Z d Z d d Z d Z RS( c C s t d | j j | f d S( u8 Internal: raise an exception for unsupported operations.u %s.%s() not supportedN( RG t __class__R ( R t name( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt _unsupported# s i c C s | j d d S( u¾ Change stream position.
|
|
Change the stream position to byte offset pos. Argument pos is
|
interpreted relative to the position indicated by whence. Values
|
for whence are:
|
|
* 0 -- start of stream (the default); offset should be zero or positive
|
* 1 -- current stream position; offset may be negative
|
* 2 -- end of stream; offset is usually negative
|
|
Return the new absolute position.
|
u seekN( RK ( R t post whence( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt seek* s c C s | j d d S( u Return current stream position.i i ( RN ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt tell9 s c C s | j d d S( u Truncate file to size bytes.
|
|
Size defaults to the current IO position as reported by tell(). Return
|
the new size.
|
u truncateN( RK ( R RL ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt truncate= s c C s | j d S( uu Flush write buffers, if applicable.
|
|
This is not implemented for read-only and non-blocking streams.
|
N( t _checkClosed( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt flushG s c C s+ | j s' z | j Wd t | _ Xn d S( ui Flush and close the IO object.
|
|
This method has no effect if the file is already closed.
|
N( t _IOBase__closedRR R ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt closeQ s c C s y | j Wn n Xd S( u Destructor. Calls close().N( RT ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt __del__\ s c C s t S( u Return whether object supports random access.
|
|
If False, seek(), tell() and truncate() will raise IOError.
|
This method may need to do a test seek().
|
( R ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt seekablej s c C s1 | j s- t | d k r! d n | n d S( u; Internal: raise an IOError if file is not seekable
|
u File or stream is not seekable.N( RV R
|
R ( R t msg( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt _checkSeekabler s c C s t S( ud Return whether object was opened for reading.
|
|
If False, read() will raise IOError.
|
( R ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt readablez s c C s1 | j s- t | d k r! d n | n d S( u; Internal: raise an IOError if file is not readable
|
u File or stream is not readable.N( RY R
|
R ( R RW ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt _checkReadable s c C s t S( ut Return whether object was opened for writing.
|
|
If False, write() and truncate() will raise IOError.
|
( R ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt writable s c C s1 | j s- t | d k r! d n | n d S( u; Internal: raise an IOError if file is not writable
|
u File or stream is not writable.N( R[ R
|
R ( R RW ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt _checkWritable s c C s | j S( u
closed: bool. True iff the file has been closed.
|
|
For backwards compatibility, this is a property, not a predicate.
|
( RS ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt closed s c C s. | j r* t | d k r d n | n d S( u8 Internal: raise an ValueError if file is closed
|
u I/O operation on closed file.N( R] R R ( R RW ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyRQ s c C s | j | S( u+ Context management protocol. Returns self.( RQ ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt __enter__§ s
|
c G s | j d S( u+ Context management protocol. Calls close()N( RT ( R RD ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt __exit__¬ s c C s | j d d S( u Returns underlying file descriptor if one exists.
|
|
An IOError is raised if the IO object does not use a file descriptor.
|
u filenoN( RK ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyR# ´ s c C s | j t S( ui Return whether this is an 'interactive' stream.
|
|
Return False if it can't be determined.
|
( RQ R ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyR » s
|
iÿÿÿÿc s× t d r$ f d } n d } d k rB d n$ t t t f sf t d n t } x[ d k s t | k rÌ j | } | s¬ Pn | | 7} | j d rr Pqr qr Wt
|
| S( u( Read and return a line from the stream.
|
|
If limit is specified, at most limit 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.
|
u peekc sZ j d } | s d S| j d d p5 t | } d k rV t | } n | S( Ni s
|
i ( t peekt findR t min( t readaheadt n( t limitR ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt
|
nreadaheadÐ s c S s d S( Ni ( ( ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyRf Ù s iÿÿÿÿu limit must be an integeri s
|
N( t hasattrR R R R R t bytearrayR t readt endswitht bytes( R Re Rf t rest b( ( Re R sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt readlineÅ s
|
!
|
c C s | j | S( N( RQ ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt __iter__é s
|
c C s | j } | s t n | S( N( Rn t StopIteration( R t line( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt nextí s c C s¡ | d k r1 t | t t f r1 t d n | d k sI | d k rS t | Sd } g } x; | D]3 } | j | | t | 7} | | k rf Pqf qf W| S( ué 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.
|
u integer or None expectedi N( R R R R R t listt appendR ( R t hintRd t linesRq ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt readlinesó s "
|
c C s, | j x | D] } | j | q Wd S( N( RQ t write( R Rv Rq ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt
|
writelines s
|
N(! R R t abct ABCMetat __metaclass__RK RN RO R RP RR R RS RT RU RV RX RY RZ R[ R\ t propertyR] RQ R^ R_ R# R Rn Ro Rr Rw Ry ( ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyRH s4 "
|
|
$ t RawIOBasec B s5 e Z d Z d d Z d Z d Z d Z RS( u Base class for raw binary I/O.iÿÿÿÿc C sm | d k r d } n | d k r+ | j St | j } | j | } | d k r\ d S| | 3t | S( u¡ Read and return up to n bytes.
|
|
Returns an empty bytes object on EOF, or None if the object is
|
set not to block and has no data to read.
|
iÿÿÿÿi N( R t readallRh t __index__t readintoRk ( R Rd Rm ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyRi s
|
c C sQ t } x- t r8 | j t } | s+ Pn | | 7} q W| rI t | S| Sd S( u+ Read until EOF, using multiple read() call.N( Rh R Ri R Rk ( R Rl t data( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyR . s
|
c C s | j d d S( u¦ Read up to len(b) bytes into b.
|
|
Returns number of bytes read (0 for EOF), or None if the object
|
is set not to block and has no data to read.
|
u readintoN( RK ( R Rm ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyR < s c C s | j d d S( u~ Write the given buffer to the IO stream.
|
|
Returns the number of bytes written, which may be less than len(b).
|
u writeN( RK ( R Rm ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyRx D s ( R R R Ri R R Rx ( ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyR~ s
|
( R t BufferedIOBasec B sA e Z d Z d d Z d d Z d Z d Z d Z RS( u 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.
|
c C s | j d d S( u Read and return up to n bytes.
|
|
If the argument is omitted, None, or negative, reads and
|
returns all data until EOF.
|
|
If the 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). But for
|
interactive raw streams (XXX and for pipes?), at most one raw
|
read will be issued, and a short result does not imply that
|
EOF is imminent.
|
|
Returns an empty bytes array on EOF.
|
|
Raises BlockingIOError if the underlying raw stream has no
|
data at the moment.
|
u readN( RK ( R Rd ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyRi a s c C s | j d d S( u7 Read up to n bytes with at most one read() system call.u read1N( RK ( R Rd ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt read1u s c C s | j t | } t | } y | | | *WnP t k
|
r } d d l } t | | j sh | n | j d | | | *n X| S( u= Read up to len(b) bytes into b.
|
|
Like read(), this may issue multiple reads to the underlying raw
|
stream, unless the latter is 'interactive'.
|
|
Returns the number of bytes read (0 for EOF).
|
|
Raises BlockingIOError if the underlying raw stream has no
|
data at the moment.
|
iÿÿÿÿNRm ( Ri R R t arrayR ( R Rm R Rd t errR
( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyR y s c C s | j d d S( u
|
Write the given buffer to the IO stream.
|
|
Return the number of bytes written, which is never less than
|
len(b).
|
|
Raises BlockingIOError if the buffer is full and the
|
underlying raw stream cannot accept more data at the moment.
|
u writeN( RK ( R Rm ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyRx s c C s | j d d S( u°
|
Separate the underlying raw stream from the buffer and return it.
|
|
After the raw stream has been detached, the buffer is in an unusable
|
state.
|
u detachN( RK ( R ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyt detach s N( R R R R Ri R R Rx R ( ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyR P s t _BufferedIOMixinc B sÅ e Z d Z d Z d d Z d Z d d Z d Z d Z d Z
|
d Z d
|
Z d Z e d Z e d Z e d Z e d Z d Z d Z d Z RS( uÝ A mixin implementation of BufferedIOBase with an underlying raw stream.
|
|
This passes most requests on to the underlying raw stream. It
|
does *not* provide implementations of read(), readinto() or
|
write().
|
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c C si | j s t d n t j | | | d k rF t d n | | _ | j t | _ d S( uM Create a new buffered reader using the given readable raw IO object.
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i c C s | j s t d n t j | | | d k rF t d n | d k rk t j d t | j n | | _
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i c C s7 | j t j | | | t j | | | | d S( N( RX R) R R( ( R R9 R R» ( ( sM /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/_pyio.pyR Ò s
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iÿÿÿÿc C s | j d d S( u³ Read at most n characters from stream.
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Separate the underlying buffer from the TextIOBase and return it.
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errors determines the strictness of encoding and decoding (see the
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newline can be None, '', '\n', '\r', or '\r\n'. It controls the
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|
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|
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The initial_value argument sets the value of object. The newline
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