Python 3.6 invalid escape sequence deprecation fixes

Author: scop

pip/commands/completion.py

@@ -31,7 +31,7 @@
     set -lx COMP_WORDS (commandline -o) ""
     set -lx COMP_CWORD (math (contains -i -- (commandline -t) $COMP_WORDS)-1)
     set -lx PIP_AUTO_COMPLETE 1
-    string split \  -- (eval $COMP_WORDS[1])
+    string split \\  -- (eval $COMP_WORDS[1])
 end
 complete -fa "(__fish_complete_pip)" -c pip
 """}

pip/commands/install.py

@@ -77,7 +77,7 @@ def __init__(self, *args, **kw):
             dest='use_user_site',
             action='store_true',
             help="Install to the Python user install directory for your "
-                 "platform. Typically ~/.local/, or %APPDATA%\Python on "
+                 "platform. Typically ~/.local/, or %APPDATA%\\Python on "
                  "Windows. (See the Python documentation for site.USER_BASE "
                  "for full details.)")
         cmd_opts.add_option(

pip/utils/appdirs.py

@@ -60,7 +60,7 @@ def user_cache_dir(appname):
 
 
 def user_data_dir(appname, roaming=False):
-    """
+    r"""
     Return full path to the user-specific data dir for this application.
 
         "appname" is the name of application.
@@ -145,7 +145,7 @@ def user_config_dir(appname, roaming=True):
 # for the discussion regarding site_config_dirs locations
 # see <https://github.com/pypa/pip/issues/1733>
 def site_config_dirs(appname):
-    """Return a list of potential user-shared config dirs for this application.
+    r"""Return a list of potential user-shared config dirs for this application.
 
         "appname" is the name of application.
 

pip/utils/encoding.py

@@ -13,7 +13,7 @@
     (codecs.BOM_UTF32_LE, 'utf32-le'),
 ]
 
-ENCODING_RE = re.compile(b'coding[:=]\s*([-\w.]+)')
+ENCODING_RE = re.compile(br'coding[:=]\s*([-\w.]+)')
 
 
 def auto_decode(data):

pip/vcs/git.py

@@ -155,7 +155,7 @@ def obtain(self, dest):
     def get_url(self, location):
         """Return URL of the first remote encountered."""
         remotes = self.run_command(
-            ['config', '--get-regexp', 'remote\..*\.url'],
+            ['config', '--get-regexp', r'remote\..*\.url'],
             show_stdout=False, cwd=location)
         remotes = remotes.splitlines()
         found_remote = remotes[0]

pip/vcs/subversion.py

@@ -12,7 +12,7 @@
 from pip.vcs import vcs, VersionControl
 
 _svn_xml_url_re = re.compile('url="([^"]+)"')
-_svn_rev_re = re.compile('committed-rev="(\d+)"')
+_svn_rev_re = re.compile(r'committed-rev="(\d+)"')
 _svn_url_re = re.compile(r'URL: (.+)')
 _svn_revision_re = re.compile(r'Revision: (.+)')
 _svn_info_xml_rev_re = re.compile(r'\s*revision="(\d+)"')

pip/wheel.py

@@ -412,7 +412,7 @@ def _get_script_text(entry):
         }
 
     maker._get_script_text = _get_script_text
-    maker.script_template = """# -*- coding: utf-8 -*-
+    maker.script_template = r"""# -*- coding: utf-8 -*-
 import re
 import sys
 

tests/functional/test_completion.py

@@ -46,7 +46,7 @@ def test_completion_for_fish(script):
     set -lx COMP_WORDS (commandline -o) ""
     set -lx COMP_CWORD (math (contains -i -- (commandline -t) $COMP_WORDS)-1)
     set -lx PIP_AUTO_COMPLETE 1
-    string split \  -- (eval $COMP_WORDS[1])
+    string split \\  -- (eval $COMP_WORDS[1])
 end
 complete -fa "(__fish_complete_pip)" -c pip"""
 

tests/unit/test_req.py

@@ -51,7 +51,7 @@ def test_no_reuse_existing_build_dir(self, data):
         finder = PackageFinder([data.find_links], [], session=PipSession())
         assert_raises_regexp(
             PreviousBuildDirError,
-            "pip can't proceed with [\s\S]*%s[\s\S]*%s" %
+            r"pip can't proceed with [\s\S]*%s[\s\S]*%s" %
             (req, build_dir.replace('\\', '\\\\')),
             reqset.prepare_files,
             finder,
@@ -187,7 +187,7 @@ def test_unsupported_hashes(self, data):
             r"Can't verify hashes for these file:// requirements because they "
             r"point to directories:\n"
             r"    file://.*{sep}data{sep}packages{sep}FSPkg "
-            "\(from -r file \(line 2\)\)".format(sep=sep),
+            r"\(from -r file \(line 2\)\)".format(sep=sep),
             reqset.prepare_files,
             finder)