Change venv
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@@ -8,12 +8,10 @@ from distutils.errors import DistutilsFileError
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from distutils import log
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# for generating verbose output in 'copy_file()'
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_copy_action = { None: 'copying',
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'hard': 'hard linking',
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'sym': 'symbolically linking' }
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_copy_action = {None: 'copying', 'hard': 'hard linking', 'sym': 'symbolically linking'}
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def _copy_file_contents(src, dst, buffer_size=16*1024):
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def _copy_file_contents(src, dst, buffer_size=16 * 1024): # noqa: C901
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"""Copy the file 'src' to 'dst'; both must be filenames. Any error
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opening either file, reading from 'src', or writing to 'dst', raises
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DistutilsFileError. Data is read/written in chunks of 'buffer_size'
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@@ -28,27 +26,30 @@ def _copy_file_contents(src, dst, buffer_size=16*1024):
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try:
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fsrc = open(src, 'rb')
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except OSError as e:
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raise DistutilsFileError("could not open '%s': %s" % (src, e.strerror))
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raise DistutilsFileError("could not open '{}': {}".format(src, e.strerror))
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if os.path.exists(dst):
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try:
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os.unlink(dst)
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except OSError as e:
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raise DistutilsFileError(
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"could not delete '%s': %s" % (dst, e.strerror))
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"could not delete '{}': {}".format(dst, e.strerror)
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)
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try:
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fdst = open(dst, 'wb')
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except OSError as e:
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raise DistutilsFileError(
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"could not create '%s': %s" % (dst, e.strerror))
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"could not create '{}': {}".format(dst, e.strerror)
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)
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while True:
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try:
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buf = fsrc.read(buffer_size)
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except OSError as e:
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raise DistutilsFileError(
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"could not read from '%s': %s" % (src, e.strerror))
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"could not read from '{}': {}".format(src, e.strerror)
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)
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if not buf:
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break
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@@ -57,15 +58,25 @@ def _copy_file_contents(src, dst, buffer_size=16*1024):
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fdst.write(buf)
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except OSError as e:
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raise DistutilsFileError(
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"could not write to '%s': %s" % (dst, e.strerror))
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"could not write to '{}': {}".format(dst, e.strerror)
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)
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finally:
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if fdst:
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fdst.close()
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if fsrc:
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fsrc.close()
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def copy_file(src, dst, preserve_mode=1, preserve_times=1, update=0,
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link=None, verbose=1, dry_run=0):
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def copy_file( # noqa: C901
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src,
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dst,
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preserve_mode=1,
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preserve_times=1,
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update=0,
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link=None,
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verbose=1,
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dry_run=0,
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):
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"""Copy a file 'src' to 'dst'. If 'dst' is a directory, then 'src' is
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copied there with the same name; otherwise, it must be a filename. (If
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the file exists, it will be ruthlessly clobbered.) If 'preserve_mode'
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@@ -102,7 +113,8 @@ def copy_file(src, dst, preserve_mode=1, preserve_times=1, update=0,
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if not os.path.isfile(src):
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raise DistutilsFileError(
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"can't copy '%s': doesn't exist or not a regular file" % src)
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"can't copy '%s': doesn't exist or not a regular file" % src
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)
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if os.path.isdir(dst):
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dir = dst
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@@ -163,9 +175,7 @@ def copy_file(src, dst, preserve_mode=1, preserve_times=1, update=0,
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# XXX I suspect this is Unix-specific -- need porting help!
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def move_file (src, dst,
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verbose=1,
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dry_run=0):
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def move_file(src, dst, verbose=1, dry_run=0): # noqa: C901
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"""Move a file 'src' to 'dst'. If 'dst' is a directory, the file will
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be moved into it with the same name; otherwise, 'src' is just renamed
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@@ -190,13 +200,13 @@ def move_file (src, dst,
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dst = os.path.join(dst, basename(src))
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elif exists(dst):
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raise DistutilsFileError(
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"can't move '%s': destination '%s' already exists" %
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(src, dst))
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"can't move '{}': destination '{}' already exists".format(src, dst)
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)
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if not isdir(dirname(dst)):
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raise DistutilsFileError(
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"can't move '%s': destination '%s' not a valid path" %
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(src, dst))
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"can't move '{}': destination '{}' not a valid path".format(src, dst)
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)
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copy_it = False
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try:
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@@ -207,7 +217,8 @@ def move_file (src, dst,
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copy_it = True
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else:
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raise DistutilsFileError(
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"couldn't move '%s' to '%s': %s" % (src, dst, msg))
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"couldn't move '{}' to '{}': {}".format(src, dst, msg)
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)
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if copy_it:
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copy_file(src, dst, verbose=verbose)
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@@ -220,13 +231,13 @@ def move_file (src, dst,
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except OSError:
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pass
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raise DistutilsFileError(
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"couldn't move '%s' to '%s' by copy/delete: "
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"delete '%s' failed: %s"
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% (src, dst, src, msg))
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"couldn't move '%s' to '%s' by copy/delete: "
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"delete '%s' failed: %s" % (src, dst, src, msg)
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)
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return dst
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def write_file (filename, contents):
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def write_file(filename, contents):
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"""Create a file with the specified name and write 'contents' (a
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sequence of strings without line terminators) to it.
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"""
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