*jp X S r SSKrSSKrSSKrSSKrSSKrSSKrSSKJr \R S; a SSK J r
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r \RB r! \RF r# " S S\RL S9r'\RN RQ \'5 " S S\'5 r)\RR RQ \)5 " S S\'5 r*\RT RQ \*5 " S S\*5 r+ " S S\*5 r, " S S \+5 r- " S S \+5 r. " S S \*5 r/ " S! S"\.\-5 r0 " S# S$\)5 r1 " S% S&\'5 r2\Rd RQ \25 " S' S(\Rf 5 r4 " S) S*\25 r5 " S+ S,\55 r6g! \" a \ r! GN2f = f! \" a " S S\$\%5 r# GN>f = f)/z)
Python implementation of the io module.
N)
allocate_lock> win32cygwin)setmode)__all__SEEK_SETSEEK_CURSEEK_END> r SEEK_HOLEi gettotalrefcountc U ca [ R R ( a Sn OSn [ R R ( a SSKnUR S[ US- 5 U $ )a
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
that pass it to TextIOWrapper or open.
However, please consider using encoding="utf-8" for new APIs.
Nutf-8localer z"'encoding' argument not specified.r )sysflags utf8_modewarn_default_encodingwarningswarnEncodingWarning)encoding
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[/ UU5 nO[ S U- 5 eUnU( a U$ [1 U5 n[3 UX4UU5 nUnX l U$ ! [& [( 4 a Nf = f! UR7 5 e = f)!a 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 exclusive creation of 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. (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
<<<<<<< HEAD
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.
=======
is max(min(blocksize, 8 MiB), DEFAULT_BUFFER_SIZE) when the device
block size is available.
On most systems, the buffer will typically be 128 kilobytes long.
>>>>>>> 36137e46a8c ([3.14] gh-150285: Fix too long docstrings in the io module (GH-150287) (GH-150458))
* "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 str 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 is a string controlling 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.
closedfd is a bool. 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.
The newly created file is non-inheritable.
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.
zinvalid file: %rzinvalid mode: %rzinvalid buffering: %rNinvalid encoding: %rinvalid errors: %rzaxrwb+txrwa+tbz'can't have text and binary mode at oncer z)can't have read/write/append mode at oncez/must have exactly one of read/write/append modez-binary mode doesn't take an encoding argumentz+binary mode doesn't take an errors argumentz+binary mode doesn't take a newline argumentr zaline buffering (buffering=1) isn't supported in binary mode, the default buffer size will be usedr )openerFTzinvalid buffering sizez can't have unbuffered text I/Ozunknown mode: %r)
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s= 3N8 ;.N" )'N8 A-N8 ?"N8 "N52N8 4N55N8 8O c P SSK nUR S[ S5 [ U S5 $ )a^ Opens the provided file with mode ``'rb'``. This function
should be used when the intent is to treat the contents as
executable code.
``path`` should be an absolute path.
When supported by the runtime, this function can be hooked
in order to allow embedders more control over code files.
This functionality is not supported on the current runtime.
r Nz(_pyio.open_code() may not be using hooksr rb)r r r5 rV )pathr s r _open_code_with_warningrZ s( MM< !% d r c \ rS rSrSrg)UnsupportedOperationi; N)__name__
__module__ __qualname____firstlineno____static_attributes__r] r r r\ r\ ; s r r\ c \ rS rSrSrS rS S jrS rS S jrS r S r
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jrS rS S jrS rS S jr\S 5 rS S jrS rS rS rS rS S jrS rS r S S jr S r S r g)!IOBasei? a 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 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.
Text I/O classes work with str data.
Note that calling any method (even inquiries) on a closed stream is
undefined. Implementations may raise OSError in this case.
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!')
c P [ U R R < SU< S35 e)z@Internal: raise an OSError exception for unsupported operations..z() not supported)r\ __class__r^ )selfnames r _unsupportedIOBase._unsupporteda s& "$(NN$;$;T$C D Dr c & U R S5 g)a 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 ints:
* 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
Some operating systems / file systems could provide additional
values.
Return an int indicating the new absolute position.
seekNrj rh poswhences r rm IOBase.seekh s
&!r c & U R SS5 $ )z5Return an int indicating the current stream position.r r )rm rh s r tell IOBase.tellz s yyA r Nc & U R S5 g)zsTruncate file to size bytes.
Size defaults to the current IO position as reported by tell().
Return the new size.
truncateNrn rh rp s r rx IOBase.truncate~
*%r c $ U R 5 g)zeFlush write buffers, if applicable.
This is not implemented for read-only and non-blocking streams.
N _checkClosedrt s r flush IOBase.flush s
r Fc p U R ( d U R 5 SU l gg! SU l f = f)zYFlush and close the IO object.
This method has no effect if the file is already closed.
TN)_IOBase__closedr rt s r rC IOBase.close s0
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s , 5c U R nU( a g[ U SS5 =n( a U" U 5 U R 5 g! [ a gf = f)zDestructor. Calls close().N
_dealloc_warn)closedr= getattrrC )rh r dealloc_warns r __del__IOBase.__del__ sU [[F "4 $? ?< ?
s A
AAc g)zReturn a bool indicating whether object supports random access.
If False, seek(), tell() and truncate() will raise OSError.
This method may need to do a test seek().
Fr] rt s r seekableIOBase.seekable s r c V U R 5 ( d [ Uc S5 eU5 eg)zEInternal: raise UnsupportedOperation if file is not seekable
Nz File or stream is not seekable.)r r\ rh msgs r _checkSeekableIOBase._checkSeekable = }}&*-+ (I @
@;>@
@ r c g)zfReturn a bool indicating whether object was opened for reading.
If False, read() will raise OSError.
Fr] rt s r readableIOBase.readable
r c V U R 5 ( d [ Uc S5 eU5 eg)zEInternal: raise UnsupportedOperation if file is not readable
Nz File or stream is not readable.)r r\ r s r _checkReadableIOBase._checkReadable r r c g)zvReturn a bool indicating whether object was opened for writing.
If False, write() and truncate() will raise OSError.
Fr] rt s r writableIOBase.writable r r c V U R 5 ( d [ Uc S5 eU5 eg)zEInternal: raise UnsupportedOperation if file is not writable
Nz File or stream is not writable.)r r\ r s r _checkWritableIOBase._checkWritable r r c U R $ )zuclosed: bool. True iff the file has been closed.
For backwards compatibility, this is a property, not a predicate.
)r rt s r r
IOBase.closed s }} r c N U R ( a [ Uc S5 eU5 eg)z7Internal: raise a ValueError if file is closed
N I/O operation on closed file.r r4 r s r r~ IOBase._checkClosed s4 ;; # = 6
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6 r c & U R 5 U $ )zCContext management protocol. Returns self (an instance of IOBase).r} rt s r __enter__IOBase.__enter__ s r c $ U R 5 g)z+Context management protocol. Calls close()N)rC )rh argss r __exit__IOBase.__exit__ s
r c & U R S5 g)zReturns underlying file descriptor (an int) if one exists.
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descriptor.
r: Nrn rt s r r:
IOBase.fileno s
(#r c $ U R 5 g)zkReturn a bool indicating whether this is an 'interactive' stream.
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Fr} rt s r r7
IOBase.isatty s
r c ^ ^ [ T S5 ( a U U4S jnOS nTc SmO TR nU" 5 m[ 5 nTS: d [ U5 T: aR T R
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nUR S5 ( a OTS: a MA [ U5 T: a MR [ U5 $ ! [ a [ T< S35 ef = f)a Read and return a line of bytes from the stream.
If size is specified, at most size bytes will be read.
Size should be an int.
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files, the newlines argument to open can be used to select the line
terminator(s) recognized.
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nreadahead#IOBase.readline..nreadahead sI IIaL ^^E*Q.A3y>19At Ar c gNr r] r] r r r r " s r r* is not an integerr r ) hasattr __index__r= r1 bytearrayr3 readendswithr0 )rh r r
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nX!: d M) U$ U$ )zReturn 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.
r )listappendr3 )rh hintr linesr s r readlinesIOBase.readlinesA sZ <419:
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r c X U R 5 U H nU R U5 M g)zWrite a list of lines to the stream.
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N)r~ write)rh r r s r
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D JJt r )__closedr r r* ) r^ r_ r` ra __doc__rj rm ru rx r r rC r r r r r r r propertyr r~ r r r: r7 r r r r r rb r] r r rd rd ? s @D"$ & H %*@@@ 6
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RawIOBasei` z Base class for raw binary I/O.c Uc SnUS: a U R 5 $ [ UR 5 5 nU R U5 nUc gUS: d U[ U5 : a [ SU S[ U5 35 eX#S2 [
U5 $ )zRead and return up to size bytes, where size is an int.
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set not to block and has no data to read.
Nr* r zreadinto returned z outside buffer size )readallr r readintor3 r4 r0 )rh r r' r s r r RawIOBase.readn s <D !8<<> ! dnn& ' MM! 9 q5AAJ 1!4I#a& RS S
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nU R [ 5 =n( a M" U( a [ U5 $ U$ )z+Read until EOF, using multiple read() call.)r r r8 r0 )rh r datas r r RawIOBase.readall sP kii 344d4 KC ii 344d4 : Kr c & U R S5 g)zRead bytes into a pre-allocated bytes-like object b.
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r Nrn rh r' s r r RawIOBase.readinto r{ r c & U R S5 g)zWrite the given buffer to the IO stream.
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length of b in bytes.
r Nrn r s r r RawIOBase.write s
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BufferedIOBasei a 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 & U R S5 g)aD Read and return up to size bytes, where size is an int.
If the argument is omitted, None, or negative, reads and
returns all data until EOF.
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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.
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Raises BlockingIOError if the underlying raw stream has no
data at the moment.
r Nrn rh r s r r BufferedIOBase.read s $
&!r c & U R S5 g)zQRead up to size bytes with at most one read() system call,
where size is an int.
read1Nrn r s r r BufferedIOBase.read1 s
'"r c " U R USS9$ )a6 Read bytes into a pre-allocated bytes-like object b.
Like read(), this may issue multiple reads to the underlying raw
stream, unless the latter is 'interactive'.
Returns an int representing the number of bytes read (0 for EOF).
Raises BlockingIOError if the underlying raw stream has no
data at the moment.
Fr _readintor s r r BufferedIOBase.readinto s ~~au~--r c " U R USS9$ )zRead bytes into buffer *b*, using at most one system call
Returns an int representing the number of bytes read (0 for EOF).
Raises BlockingIOError if the underlying raw stream has no
data at the moment.
Tr r r s r readinto1BufferedIOBase.readinto1 s ~~at~,,r c [ U[ 5 ( d [ U5 nUR S5 nU( a U R [ U5 5 nOU R [ U5 5 n[ U5 nX1S U& U$ )NB)r+
memoryviewcastr r3 r )rh r' r r r s r r BufferedIOBase._readinto sc !Z((1
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FF3K ::c!f%D99SV$D I"1r c & U R S5 g)zWrite the given bytes buffer to the IO stream.
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in bytes.
Raises BlockingIOError if the buffer is full and the
underlying raw stream cannot accept more data at the moment.
r Nrn r s r r BufferedIOBase.write s
'"r c & U R S5 g)z
Separate the underlying raw stream from the buffer and return it.
After the raw stream has been detached, the buffer is in an unusable
state.
detachNrn rt s r r
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(#r r] Nr )
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S 5 rS rS rS rS rS rSrg)_BufferedIOMixini zA mixin implementation of BufferedIOBase with an underlying raw stream.
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does *not* provide implementations of read(), readinto() or
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c Xl g r _rawrh rQ s r __init___BufferedIOMixin.__init__ s r c ^ U R R X5 nUS: a [ S5 eU$ )Nr z#seek() returned an invalid position)rQ rm r< )rh rp rq new_positions r rm _BufferedIOMixin.seek s. xx}}S1 ! ?@ @r c \ U R R 5 nUS: a [ S5 eU$ )Nr z#tell() returned an invalid position)rQ ru r< ry s r ru _BufferedIOMixin.tell s) hhmmo 7?@ @
r Nc U R 5 U R 5 U R 5 Uc U R 5 nU R R U5 $ r )r~ r r ru rQ rx ry s r rx _BufferedIOMixin.truncate# sL
;))+C xx %%r c p U R ( a [ S5 eU R R 5 g )Nflush on closed file)r r4 rQ r rt s r r _BufferedIOMixin.flush4 s# ;; 34 4 r c U R b> U R ( d, U R 5 U R R 5 g g g ! U R R 5 f = fr )rQ r r rC rt s r rC _BufferedIOMixin.close9 sH 88
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r c 6 U R R 5 $ r )rQ r rt s r r _BufferedIOMixin.seekableK xx ""r c U R $ r r rt s r rQ _BufferedIOMixin.rawN s yyr c . U R R $ r )rQ r rt s r r _BufferedIOMixin.closedR s xx r c . U R R $ r )rQ ri rt s r ri _BufferedIOMixin.nameV xx}} r c . U R R $ r )rQ rB rt s r rB _BufferedIOMixin.modeZ r- r c J [ SU R R < S35 eNzcannot pickle z objectr1 rg r^ rt s r __getstate__ _BufferedIOMixin.__getstate__^ ! . )@)@(C7KLLr c U R R nU R R n U R nSR XU5 $ ! [
a SR X5 s $ f = f)Nz<{}.{} name={!r}>z<{}.{}>)rg r_ r` ri formatr= )rh modnameclsnameri s r __repr___BufferedIOMixin.__repr__a sf ..++..-- F99D '--gE E 6 ##G5 5 6s A A*)A*c R [ U R SS 5 =n( a U" U5 g g Nr )r rQ rh sourcer s r r _BufferedIOMixin._dealloc_warnk s( "488_dC C< C Dr c 6 U R R 5 $ r )rQ r: rt s r r: _BufferedIOMixin.filenoq xx r c 6 U R R 5 $ r )rQ r7 rt s r r7 _BufferedIOMixin.isattyt rC r r r r )r^ r_ r` ra r r rm ru rx r rC r
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r c U R ( a [ S5 eUc SnO UR nU" 5 nUS: a [ U R 5 n[ U R 5 U R :: a g[ [ U R 5 U R U- 5 nU R U R U nX0l [ U5 $ ! [ a [ U< S35 ef = f)Nread from closed filer* r r r )
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is used.
c UR 5 ( d [ S5 e[ R X5 US:: a [ S5 eX l U R
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z "raw" argument must be readable.r invalid buffer sizeN) r r< r r r4 buffer_size_reset_read_bufLock
_read_lockrh rQ r s r r BufferedReader.__init__ sX ||~~<= =!!$, ! 23 3& &r c 6 U R R 5 $ r )rQ r rt s r r BufferedReader.readable! r& r c SU l SU l g )Nr r ) _read_buf _read_posrt s r r BufferedReader._reset_read_buf$ s r Nc Ub US: a [ S5 eU R U R U5 sSSS5 $ ! , ( d f g= f)zRead size bytes.
Returns exactly size bytes of data unless the underlying raw IO
stream reaches EOF or if the call would block in non-blocking
mode. If size is negative, read until EOF or until read() would
block.
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writeable respectively. If the buffer_size is omitted it defaults to
DEFAULT_BUFFER_SIZE.
c UR 5 ( d [ S5 eUR 5 ( d [ S5 e[ X5 U l [ X#5 U l g)z5Constructor.
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z#"reader" argument must be readable.z#"writer" argument must be writable.N)r r< r r@ readerr? writer)rh r r r s r r BufferedRWPair.__init__J sN
?@ @ ?@ @$V9 $V9 r c B Uc SnU R R U5 $ Nr* )r r r s r r BufferedRWPair.readX s! <D{{ %%r c 8 U R R U5 $ r )r r r s r r BufferedRWPair.readinto] s {{##A&&r c 8 U R R U5 $ r )r r r s r r BufferedRWPair.write` s {{ ##r c 8 U R R U5 $ r )r r r s r r BufferedRWPair.peekc s {{ %%r c 8 U R R U5 $ r )r r r s r r BufferedRWPair.read1f s {{ &&r c 8 U R R U5 $ r )r r r s r r BufferedRWPair.readinto1i s {{$$Q''r c 6 U R R 5 $ r )r r rt s r r BufferedRWPair.readablel {{##%%r c 6 U R R 5 $ r )r r rt s r r BufferedRWPair.writableo r r c 6 U R R 5 $ r )r r rt s r r BufferedRWPair.flushr s {{ ""r c U R R 5 U R R 5 g ! U R R 5 f = fr )r rC r rt s r rC BufferedRWPair.closeu s8 KK KK DKK s 7 Ac x U R R 5 =( d U R R 5 $ r )r r7 r rt s r r7 BufferedRWPair.isatty{ s' {{!!#;t{{'9'9';;r c . U R R $ r )r r rt s r r BufferedRWPair.closed~ {{!!!r )r r Nr r )r^ r_ r` ra r r8 r r r r r r r r r r rC r7 r r rb r] r r r r : s] 4G : &
'$&'(&&# < " "r r c n \ rS rSrSr\4S jrSS jrS rSS jr SS jr
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c | UR 5 [ R XU5 [ R XU5 g r )r r@ r r? r s r r BufferedRandom.__init__ s. ;7 ;7r c U[ ; a [ S5 eU R 5 U R ( aQ U R U R
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S S5 U l( U RP S :: a [R U l( [T ( a [U U[ RV 5 Xl, U R. ( a [ RZ " US[\ 5 O X`l g! SU l f = f! [N a Nf = f! [^ a) n U RH [H R` :w a e Sn A NQSn A ff = f! U b [ R " U 5 e = f) a Open a file.
The mode can be 'r' (default), 'w', 'x' or 'a' for reading,
writing, exclusive creation or appending. The file will be created
if it doesn't exist when opened for writing or appending; it will be
truncated when opened for writing. A FileExistsError will be raised
if it already exists when opened for creating. Opening a file for
creating implies writing so this mode behaves in a similar way to
'w'. Add a '+' to the mode to allow simultaneous reading and
writing.
A custom opener can be used by passing a callable as *opener*.
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by calling opener with (*name*, *flags*). *opener* must return
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functionality similar to passing None).
r r* z$integer argument expected, got floatNz!bool is used as a file descriptorr )r znegative file descriptorzinvalid mode: zxrwab+c 3 * # U H oS ; v M g7f)rwaxNr] ).0cs r "FileIO.__init__.. s )DqF{Ds r r% zKMust have exactly one of create/read/write/append mode and at most one plusr! Tr" r# r$ O_BINARY O_NOINHERIT O_CLOEXECz'Cannot use closefd=False with file namei z expected integer from openerzopener returned Fr; )1_fd_closefdr- rC r+ floatr1 r, boolr r r5 r4 r/ r2 sumcount_created _writableO_EXCLO_CREAT _readableO_TRUNC
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U5 $ ! [ a gf = f)zRead at most size bytes, returned as bytes.
Only makes one system call, so less data may be returned than requested
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Return an empty bytes object at EOF.
Nr )r~ r r r- r r r r s r r FileIO.ready s_
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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.
r r N)r~ r r8 r- r+ r r r9 st_sizer< r r3 rn r r r0 )rh bufsizerp endrR r r s r r FileIO.readall s
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a gf = f)zWrite bytes b to file, return number written.
Only makes one system call, so not all of the data may be written.
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mode, returns None if the write would block.
N)r~ r r- r r r r s r r FileIO.write sH
88DHHa( ( s A
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" U R X5 $ )a Move to new 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.
zan integer is required)r+ r r1 r~ r- r+ r ro s r rm FileIO.seek s> c5 ! ! 45 5 xx#..r c n U R 5 [ R " U R S[ 5 $ )zQtell() -> int. Current file position.
Can raise OSError for non seekable files.r )r~ r- r+ r r rt s r ru FileIO.tell s'
xx!X..r c U R 5 U R 5 Uc U R 5 n[ R " U R
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Size defaults to the current file position, as returned by tell().
The current file position is changed to the value of size.
)r~ r ru r- ftruncater r s r rx FileIO.truncate sC
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A closed file cannot be used for further I/O operations.
close() may be called more than once without error.
r N)r r r r- rC r[ r\ s r rC FileIO.close sM {{
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s AA% %A5c U R 5 U R c$ U R 5 SU l U R $ U R $ ! [ a SU l U R $ f = f)z$True if file supports random-access.TF)r~ _seekableru r< rt s r r FileIO.seekable sf >> !
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's A A-,A-c : U R 5 U R $ )z'True if file was opened in a read mode.)r~ r rt s r r FileIO.readable ~~ r c : U R 5 U R $ )z(True if file was opened in a write mode.)r~ r rt s r r FileIO.writable r[ r c : U R 5 U R $ )z3Return the underlying file descriptor (an integer).)r~ r rt s r r:
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s xxr c b U R 5 [ R " U R 5 $ )z.True if the file is connected to a TTY device.)r~ r- r7 r rt s r r7
FileIO.isatty s! yy""r c U R $ )z6True if the file descriptor will be closed by close().)r rt s r rH FileIO.closefd s }} r c U R ( a U R ( a ggU R ( a U R ( a ggU R ( a U R ( a ggg)zString giving the file modezxb+xbzab+abzrb+rX wb)r r r r rt s r rB FileIO.mode sC ==~~
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TextIOBasei/ zbBase class for text I/O.
This class provides a character and line based interface to stream
I/O.
c & U R S5 g)zRead at most size characters from stream, where size is an int.
Read from underlying buffer until we have size characters or we hit
EOF. If size is negative or omitted, read until EOF.
Returns a string.
r Nrn r s r r TextIOBase.read7 s
&!r c & U R S5 g)z.Write string s to stream and returning an int.r Nrn )rh ss r r TextIOBase.writeA s '"r Nc & U R S5 g)z*Truncate size to pos, where pos is an int.rx Nrn ry s r rx TextIOBase.truncateE s *%r c & U R S5 g)zORead until newline or EOF.
Returns an empty string if EOF is hit immediately.
r Nrn rt s r r TextIOBase.readlineI s
*%r c & U R S5 g)z
Separate the underlying buffer from the TextIOBase and return it.
After the underlying buffer has been detached, the TextIO is in an
unusable state.
r
Nrn rt s r r
TextIOBase.detachP r r c g)zSubclasses should override.Nr] rt s r r TextIOBase.encodingY s r c g)zzLine endings translated so far.
Only line endings translated during reading are considered.
Subclasses should override.
Nr] rt s r newlinesTextIOBase.newlines^ s r c g)zEError setting of the decoder or encoder.
Subclasses should override.Nr] rt s r rF TextIOBase.errorsh s
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)IncrementalNewlineDecoderir a 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.
c r [ R R XS9 X l Xl SU l SU l g )N)rF r F)codecsIncrementalDecoderr translatedecoderseennl pendingcr)rh r r rF s r r "IncrementalNewlineDecoder.__init__y s1 !!**4*?" r c U R c UnOU R R XS9nU R ( a U( d U( a SU- nSU l UR S5 ( a U( d US S nSU l UR S5 nUR S5 U-
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>> AIDyr c Uu p#[ US- 5 U l U R b U R R X#S- 45 g g r )r r r setstate)rh staterM r s r r "IncrementalNewlineDecoder.setstate s@ dQh << # LL ! !3 "2 3 $r c p SU l SU l U R b U R R 5 g g )Nr F)r r r resetrt s r r IncrementalNewlineDecoder.reset s/ << # LL $r r r c SU R $ )N)Nr r )r r r )r r )r r )r r r )r rt s r ry "IncrementalNewlineDecoder.newlines s r )r r r r N)strict)F)r^ r_ r` ra r r r r r r r r r r ry rb r] r r r~ r~ r sC > 4 ! C
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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 the
codecs.register) and defaults to "strict".
newline can be None, '', '\n', '\r', or '\r\n'. It controls the
handling of line endings. If it is None, universal newlines is
enabled. With this enabled, on input, the lines endings '\n', '\r',
or '\r\n' are translated to '\n' before being returned to the
caller. Conversely, on output, '\n' is translated to the system
default line separator, os.linesep. If newline is any other of its
legal values, that newline becomes the newline when the file is read
and it is returned untranslated. On output, '\n' is converted to the
newline.
If line_buffering is True, a call to flush is implied when a call to
write contains a newline character.
i Nc U R U5 [ U5 nUS:X a U R 5 n[ U[ 5 ( d [ SU- 5 e[ R " U5 R ( d Sn[ Xr- 5 eUc SnOD[ U[ 5 ( d [ SU- 5 e[ ( a [ R " U5 Xl SU l
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NzPIt is not possible to set the encoding or newline of stream after the first readr r r r )r Ellipsisr\ r r+ r/ r1 r r r r rS r r r )rh r rF rG rS r s r reconfigureTextIOWrapper.reconfigureX s
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r c Xl SU l g)z Set the _decoded_chars buffer.r N)r r )rh charss r r TextIOWrapper._set_decoded_chars s ##$ r c U R nUc U R US nOU R X"U- nU =R [ U5 -
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