python3: Update to 3.7.8, refresh/rework patches

This contains a fix for CVE-2020-8492 (Denial of service in
urllib.request.AbstractBasicAuthHandler)[1].

This also updates the setuptools and pip packages to 47.1.0 and 20.1.1,
respectively.

[1]: https://docs.python.org/release/3.7.8/whatsnew/changelog.html#python-3-7-8-release-candidate-1

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

lang/python/python3/patches-setuptools/001-reproducible.patch

@@ -5,7 +5,7 @@ Index: b/setuptools/command/easy_install.py
 ===================================================================
 --- a/setuptools/command/easy_install.py
 +++ b/setuptools/command/easy_install.py
-@@ -436,7 +436,7 @@ consider to install to another location,
+@@ -423,7 +423,7 @@ class easy_install(Command):
              for spec in self.args:
                  self.easy_install(spec, not self.no_deps)
              if self.record:

lang/python/python3/patches-setuptools/002-sorted-requires.patch

@@ -5,10 +5,10 @@ Index: b/setuptools/command/egg_info.py
 ===================================================================
 --- a/setuptools/command/egg_info.py
 +++ b/setuptools/command/egg_info.py
-@@ -621,7 +621,7 @@ def warn_depends_obsolete(cmd, basename,
- def _write_requirements(stream, reqs):
-     lines = yield_lines(reqs or ())
-     append_cr = lambda line: line + '\n'
+@@ -641,7 +641,7 @@ def _write_requirements(stream, reqs):
+ 
+     def append_cr(line):
+         return line + '\n'
 -    lines = map(append_cr, lines)
 +    lines = map(append_cr, sorted(lines))
      stream.writelines(lines)

lang/python/python3/patches-setuptools/003-PKG-INFO-output-reproducible.patch

@@ -3,7 +3,7 @@ https://sources.debian.org/patches/python-setuptools/40.8.0-1/PKG-INFO-output-re
 
 --- a/setuptools/dist.py
 +++ b/setuptools/dist.py
-@@ -191,7 +191,7 @@ def write_pkg_file(self, file):
+@@ -193,7 +193,7 @@ def write_pkg_file(self, file):
              self.long_description_content_type
          )
      if self.provides_extras:

lang/python/python3/patches-setuptools/004-site-patch.patch

@@ -1,6 +1,6 @@
 --- a/setuptools/command/easy_install.py
 +++ b/setuptools/command/easy_install.py
-@@ -1315,7 +1315,10 @@ class easy_install(Command):
+@@ -1324,7 +1324,10 @@ class easy_install(Command):
              return  # already did it, or don't need to
  
          sitepy = os.path.join(self.install_dir, "site.py")