Bug 1592855 - run mach vendor aom with python3 r=dminor

Changes:
- update sections of `generate_sources_mozbuild.py` and `cmakeparser.py` to be python3 compatible
- change import of `urlparse` to be python3 compatible

Depends on D51414

Differential Revision: https://phabricator.services.mozilla.com/D51692

--HG--
extra : moz-landing-system : lando

media/libaom/cmakeparser.py

@@ -135,7 +135,7 @@ def evaluate(variables, cache_variables, parsed):
                 variable = arguments[1]
                 values = arguments[2:]
                 if action == 'APPEND':
-                    if not variables.has_key(variable):
+                    if variable not in variables:
                         variables[variable] = ' '.join(values)
                     else:
                         variables[variable] += ' ' + ' '.join(values)
@@ -145,7 +145,7 @@ def evaluate(variables, cache_variables, parsed):
             variable = arguments[0]
             value = arguments[2]
             # Allow options to be override without changing CMake files
-            if not variables.has_key(variable):
+            if variable not in variables:
                 variables[variable] = value
         elif command == 'return':
             return False, sources
@@ -156,7 +156,7 @@ def evaluate(variables, cache_variables, parsed):
             try:
                 cache = values.index('CACHE')
                 values = values[0:cache]
-                if not variables.has_key(variable):
+                if variable not in variables:
                     variables[variable] = ' '.join(values)
                 cache_variables.append(variable)
             except ValueError:

media/libaom/generate_sources_mozbuild.py

@@ -82,7 +82,7 @@ if __name__ == '__main__':
         'AOM_TEST_TEST_CMAKE_': 1, #prevent building tests
     }
 
-    f = open('sources.mozbuild', 'wb')
+    f = open('sources.mozbuild', 'w')
     f.write('# This file is generated. Do not edit.\n\n')
     f.write('files = {\n')
 
@@ -130,6 +130,8 @@ if __name__ == '__main__':
             exports = filter(lambda x: not re.search('(internal|src)', x), exports)
             exports = filter(lambda x: not re.search('(emmintrin_compat.h|mem_.*|msvc.h|aom_once.h)$', x), exports)
 
+            sources = list(sources)
+            
             for export in exports:
                 sources.remove(export)
 
@@ -138,7 +140,7 @@ if __name__ == '__main__':
 
             # The build system is unhappy if two files have the same prefix
             # In libaom, sometimes .asm and .c files share the same prefix
-            for i in xrange(len(sources) - 1):
+            for i in range(len(sources) - 1):
                 if sources[i].endswith('.asm'):
                     if os.path.splitext(sources[i])[0] == os.path.splitext(sources[i + 1])[0]:
                         old = sources[i]

python/mozbuild/mozbuild/vendor_aom.py

@@ -15,7 +15,7 @@ import requests
 import re
 import sys
 import tarfile
-from urlparse import urlparse
+from urllib.parse import urlparse
 
 
 class VendorAOM(MozbuildObject):