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bpo-36952: Remove the bufsize parameter in fileinput.input(). (GH-13400)

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This parameter is marked as deprecated since 3.6 and for removal in 3.8.
It already had no effects.
This commit is contained in:
Matthias Bussonnier 2019-05-20 13:44:11 -07:00 • committed by Serhiy Storchaka
parent 4011d865d0
commit 1a3faf9d97
5 changed files with 40 additions and 46 deletions
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13
Lib/fileinput.py
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@ -80,8 +80,7 @@ __all__ = ["input", "close", "nextfile", "filename", "lineno", "filelineno",
_state = None
def input(files=None, inplace=False, backup="", bufsize=0,
mode="r", openhook=None):
def input(files=None, inplace=False, backup="", *, mode="r", openhook=None):
"""Return an instance of the FileInput class, which can be iterated.
The parameters are passed to the constructor of the FileInput class.
@ -91,7 +90,7 @@ def input(files=None, inplace=False, backup="", bufsize=0,
global _state
if _state and _state._file:
raise RuntimeError("input() already active")
_state = FileInput(files, inplace, backup, bufsize, mode, openhook)
_state = FileInput(files, inplace, backup, mode=mode, openhook=openhook)
return _state
def close():
@ -173,7 +172,7 @@ def isstdin():
return _state.isstdin()
class FileInput:
"""FileInput([files[, inplace[, backup[, bufsize, [, mode[, openhook]]]]]])
"""FileInput([files[, inplace[, backup]]], *, mode=None, openhook=None)
Class FileInput is the implementation of the module; its methods
filename(), lineno(), fileline(), isfirstline(), isstdin(), fileno(),
@ -185,7 +184,7 @@ class FileInput:
sequential order; random access and readline() cannot be mixed.
"""
def __init__(self, files=None, inplace=False, backup="", bufsize=0,
def __init__(self, files=None, inplace=False, backup="", *,
mode="r", openhook=None):
if isinstance(files, str):
files = (files,)
@ -201,10 +200,6 @@ class FileInput:
self._files = files
self._inplace = inplace
self._backup = backup
if bufsize:
import warnings
warnings.warn('bufsize is deprecated and ignored',
DeprecationWarning, stacklevel=2)
self._savestdout = None
self._output = None
self._filename = None