Mercurial > cpython-lru_cache-weakref

annotate Lib/nturl2path.py @ 87690:66c1c9f32567 default tip

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 7d69d04522e3
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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b6f52c1ef6da More trivial comment -> docstring transformations by Ka-Ping Yee,
Guido van Rossum <guido@python.org>
parents: 10419
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1 """Convert a NT pathname to a file URL and vice versa."""
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2
0ff5bd8ebb01 url2path for NT
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3 def url2pathname(url):
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4 """OS-specific conversion from a relative URL of the 'file' scheme
536f24e16af2 Bug #649974: make docstrings for url2pathname consistent
Georg Brandl <georg@python.org>
parents: 36039
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5 to a file system path; not recommended for general use."""
536f24e16af2 Bug #649974: make docstrings for url2pathname consistent
Georg Brandl <georg@python.org>
parents: 36039
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6 # e.g.
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7 # ///C|/foo/bar/spam.foo
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Georg Brandl <georg@python.org>
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8 # becomes
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Georg Brandl <georg@python.org>
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9 # C:\foo\bar\spam.foo
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 43020
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10 import string, urllib.parse
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Georg Brandl <georg@python.org>
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11 # Windows itself uses ":" even in URLs.
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Georg Brandl <georg@python.org>
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12 url = url.replace(':', '|')
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13 if not '|' in url:
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14 # No drive specifier, just convert slashes
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15 if url[:4] == '////':
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parents: 12797
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16 # path is something like ////host/path/on/remote/host
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parents: 12797
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17 # convert this to \\host\path\on\remote\host
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Tim Peters <tim.peters@gmail.com>
parents: 12797
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18 # (notice halving of slashes at the start of the path)
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Tim Peters <tim.peters@gmail.com>
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19 url = url[2:]
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Eric S. Raymond <esr@thyrsus.com>
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20 components = url.split('/')
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parents: 12797
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21 # make sure not to convert quoted slashes :-)
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 43020
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22 return urllib.parse.unquote('\\'.join(components))
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23 comp = url.split('|')
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Fred Drake <fdrake@acm.org>
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24 if len(comp) != 2 or comp[0][-1] not in string.ascii_letters:
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parents: 12797
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25 error = 'Bad URL: ' + url
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Andrew Svetlov <andrew.svetlov@gmail.com>
parents: 69348
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26 raise OSError(error)
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27 drive = comp[0][-1].upper()
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28 components = comp[1].split('/')
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29 path = drive + ':'
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de0da2759c8c Fix Issue11474 - fix url2pathname() handling of '/C|/' on Windows
Senthil Kumaran <orsenthil@gmail.com>
parents: 53805
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30 for comp in components:
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Tim Peters <tim.peters@gmail.com>
parents: 12797
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31 if comp:
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 43020
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32 path = path + '\\' + urllib.parse.unquote(comp)
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Senthil Kumaran <orsenthil@gmail.com>
parents: 53805
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33 # Issue #11474 - handing url such as |c/|
de0da2759c8c Fix Issue11474 - fix url2pathname() handling of '/C|/' on Windows
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parents: 53805
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34 if path.endswith(':') and url.endswith('/'):
de0da2759c8c Fix Issue11474 - fix url2pathname() handling of '/C|/' on Windows
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parents: 53805
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35 path += '\\'
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36 return path
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37
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38 def pathname2url(p):
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parents: 36039
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39 """OS-specific conversion from a file system path to a relative URL
536f24e16af2 Bug #649974: make docstrings for url2pathname consistent
Georg Brandl <georg@python.org>
parents: 36039
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40 of the 'file' scheme; not recommended for general use."""
536f24e16af2 Bug #649974: make docstrings for url2pathname consistent
Georg Brandl <georg@python.org>
parents: 36039
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41 # e.g.
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Georg Brandl <georg@python.org>
parents: 36039
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42 # C:\foo\bar\spam.foo
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Georg Brandl <georg@python.org>
parents: 36039
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43 # becomes
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Georg Brandl <georg@python.org>
parents: 36039
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44 # ///C|/foo/bar/spam.foo
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 43020
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45 import urllib.parse
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Tim Peters <tim.peters@gmail.com>
parents: 12797
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46 if not ':' in p:
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Tim Peters <tim.peters@gmail.com>
parents: 12797
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47 # No drive specifier, just convert slashes and quote the name
010d03853546 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 12797
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48 if p[:2] == '\\\\':
010d03853546 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 12797
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49 # path is something like \\host\path\on\remote\host
010d03853546 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 12797
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50 # convert this to ////host/path/on/remote/host
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Tim Peters <tim.peters@gmail.com>
parents: 12797
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51 # (notice doubling of slashes at the start of the path)
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parents: 12797
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52 p = '\\\\' + p
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parents: 16460
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53 components = p.split('\\')
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 43020
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54 return urllib.parse.quote('/'.join(components))
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55 comp = p.split(':')
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parents: 12797
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56 if len(comp) != 2 or len(comp[0]) > 1:
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Tim Peters <tim.peters@gmail.com>
parents: 12797
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57 error = 'Bad path: ' + p
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7d69d04522e3 Replace IOError with OSError (#16715)
Andrew Svetlov <andrew.svetlov@gmail.com>
parents: 69348
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58 raise OSError(error)
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59
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 43020
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60 drive = urllib.parse.quote(comp[0].upper())
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61 components = comp[1].split('\\')
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parents: 48336
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62 path = '///' + drive + ':'
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63 for comp in components:
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parents: 12797
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64 if comp:
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2c1068328b5b follow-up of r64385: rename urllib.quote in nturl2path
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 43020
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65 path = path + '/' + urllib.parse.quote(comp)
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parents: 12797
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66 return path