Compare to None using identity is operator

This is a trivial change that replaces `==` operator with `is` operator, following PEP 8 guideline:

> Comparisons to singletons like None should always be done with is or is not, never the equality operators.

https://legacy.python.org/dev/peps/pep-0008/#programming-recommendations
This commit is contained in:
Michał Janiszewski 2018-10-30 21:22:43 +01:00 committed by Frederik Rietdijk
parent c3a1c0008b
commit 3f05186984

View file

@ -44,14 +44,14 @@ class SPECTemplate(object):
self.key = self.getSelfKey()
tmpDir = os.path.join(outputDir, self.rewriteName(self.spec.sourceHeader['name']))
if self.translateTable != None:
if self.translateTable is not None:
self.relOutputDir = self.translateTable.path(self.key,tmpDir)
else:
self.relOutputDir = tmpDir
self.final_output_dir = os.path.normpath( self.relOutputDir )
if self.repositoryDir != None:
if self.repositoryDir is not None:
self.potential_repository_dir = os.path.normpath( os.path.join(self.repositoryDir,self.relOutputDir) )
@ -59,7 +59,7 @@ class SPECTemplate(object):
def rewriteCommands(self, string):
string = string.replace('SPACER_DIR_FOR_REMOVAL/','')
string = string.replace('SPACER_DIR_FOR_REMOVAL','')
string = '\n'.join(map(lambda line: ' '.join(map(lambda x: x.replace('SOURCE_DIR_SPACER/',('${./' if (self.buildRootInclude == None) else '${buildRoot}/usr/share/buildroot/SOURCES/'))+('}' if (self.buildRootInclude == None) else '') if x.startswith('SOURCE_DIR_SPACER/') else x, line.split(' '))), string.split('\n')))
string = '\n'.join(map(lambda line: ' '.join(map(lambda x: x.replace('SOURCE_DIR_SPACER/',('${./' if (self.buildRootInclude is None) else '${buildRoot}/usr/share/buildroot/SOURCES/'))+('}' if (self.buildRootInclude is None) else '') if x.startswith('SOURCE_DIR_SPACER/') else x, line.split(' '))), string.split('\n')))
string = string.replace('\n','\n ')
string = string.rstrip()
return string
@ -82,7 +82,7 @@ class SPECTemplate(object):
rewrite = lambda l: ''.join(camelcase(filterDoc(filterDevel(l))))
def filterPackageGroup(target):
if target == None:
if target is None:
return [ rewrite(x.split('-')) for x in inputs if (not x.split('-')[0] in self.packageGroups) or (len(x.split('-')) == 1) ]
elif target in self.packageGroups:
return [ target + '_' + rewrite(x.split('-')[1:]) for x in inputs if (x.split('-')[0] == target) and (len(x.split('-')) > 1)]
@ -90,7 +90,7 @@ class SPECTemplate(object):
raise Exception("Unknown target")
return []
if target == None:
if target is None:
packages = filterPackageGroup(None)
packages.sort()
elif target in self.packageGroups:
@ -111,7 +111,7 @@ class SPECTemplate(object):
def getBuildInputs(self,target=None):
inputs = self.rewriteInputs(target,self.spec.sourceHeader['requires'])
if self.translateTable != None:
if self.translateTable is not None:
return map(lambda x: self.translateTable.name(x), inputs)
else:
return inputs
@ -125,7 +125,7 @@ class SPECTemplate(object):
return key
def getSelf(self):
if self.translateTable != None:
if self.translateTable is not None:
return self.translateTable.name(self.key)
else:
return self.key
@ -161,7 +161,7 @@ class SPECTemplate(object):
facts["sha256"].append(sha256)
patches = [source for (source, _, flag) in self.spec.sources if flag==2]
if self.buildRootInclude == None:
if self.buildRootInclude is None:
facts["patches"] = map(lambda x: './'+x, patches)
else:
facts["patches"] = map(lambda x: '"${buildRoot}/usr/share/buildroot/SOURCES/'+x+'"', reversed(patches))
@ -292,7 +292,7 @@ class SPECTemplate(object):
if not os.path.exists(self.final_output_dir):
os.makedirs(self.final_output_dir)
if self.inputDir != None:
if self.inputDir is not None:
self.copySources(self.inputDir, self.final_output_dir)
self.copyPatches(self.inputDir, self.final_output_dir)
@ -334,19 +334,19 @@ class NixTemplate(object):
url = re.match(r'^\s*url\s*=\s*"?(.*?)"?\s*;\s*$', line)
sha256 = re.match(r'^\s*sha256\s*=\s*"(.*?)"\s*;\s*$', line)
patches = re.match(r'^\s*patches\s*=\s*(\[.*?\])\s*;\s*$', line)
if name != None and self.original["name"] == None:
if name is not None and self.original["name"] is None:
self.original["name"] = name.group(1)
self.matchedLines[n] = "name"
if version != None and self.original["version"] == None:
if version is not None and self.original["version"] is None:
self.original["version"] = version.group(1)
self.matchedLines[n] = "version"
if url != None and self.original["url"] == None:
if url is not None and self.original["url"] is None:
self.original["url"] = url.group(1)
self.matchedLines[n] = "url"
if sha256 != None and self.original["sha256"] == None:
if sha256 is not None and self.original["sha256"] is None:
self.original["sha256"] = sha256.group(1)
self.matchedLines[n] = "sha256"
if patches != None and self.original["patches"] == None:
if patches is not None and self.original["patches"] is None:
self.original["patches"] = patches.group(1)
self.matchedLines[n] = "patches"
@ -355,7 +355,7 @@ class NixTemplate(object):
nixTemplateFile = open(os.path.normpath(self.nixfile),'r')
nixOutFile = open(os.path.normpath(nixOut),'w')
for (n,line) in enumerate(nixTemplateFile):
if self.matchedLines.has_key(n) and self.update[self.matchedLines[n]] != None:
if self.matchedLines.has_key(n) and self.update[self.matchedLines[n]] is not None:
nixOutFile.write(line.replace(self.original[self.matchedLines[n]], self.update[self.matchedLines[n]], 1))
else:
nixOutFile.write(line)
@ -383,14 +383,14 @@ class TranslationTable(object):
def update(self, key, path, name=None):
self.tablePath[key] = path
if name != None:
if name is not None:
self.tableName[key] = name
def readTable(self, tableFile):
with file(tableFile, 'r') as infile:
for line in infile:
match = re.match(r'^(.+?)\s+(.+?)\s+(.+?)\s*$', line)
if match != None:
if match is not None:
if not self.tablePath.has_key(match.group(1)):
self.tablePath[match.group(1)] = match.group(2)
if not self.tableName.has_key(match.group(1)):
@ -449,7 +449,7 @@ if __name__ == "__main__":
nameMap = {}
newTable = TranslationTable()
if args.translate != None:
if args.translate is not None:
table = TranslationTable()
table.readTable(args.translate)
newTable.readTable(args.translate)
@ -461,7 +461,7 @@ if __name__ == "__main__":
sys.stderr.write("INFO: generate nix file from: %s\n" % specPath)
spec = SPECTemplate(specPath, args.output, args.inputSources, args.buildRoot, table, args.repository, allPackagesDir, args.maintainer)
if args.repository != None:
if args.repository is not None:
if os.path.exists(os.path.join(spec.potential_repository_dir,'default.nix')):
nixTemplate = NixTemplate(os.path.join(spec.potential_repository_dir,'default.nix'))
nixTemplate.loadUpdate(spec.facts)
@ -470,12 +470,12 @@ if __name__ == "__main__":
nixTemplate.generateUpdated(os.path.join(spec.final_output_dir,'default.nix'))
else:
sys.stderr.write("WARNING: Repository does not contain template: %s\n" % os.path.join(spec.potential_repository_dir,'default.nix'))
if args.buildRoot == None:
if args.buildRoot is None:
spec.generateCombined()
else:
buildRootContent[spec.key] = spec.generateSplit()
else:
if args.buildRoot == None:
if args.buildRoot is None:
spec.generateCombined()
else:
buildRootContent[spec.key] = spec.generateSplit()
@ -486,7 +486,7 @@ if __name__ == "__main__":
except Exception, e:
sys.stderr.write("ERROR: %s failed with:\n%s\n%s\n" % (specPath,e.message,traceback.format_exc()))
if args.translateOut != None:
if args.translateOut is not None:
if not os.path.exists(os.path.dirname(os.path.normpath(args.translateOut))):
os.makedirs(os.path.dirname(os.path.normpath(args.translateOut)))
newTable.writeTable(args.translateOut)
@ -502,7 +502,7 @@ if __name__ == "__main__":
allPackagesFile.write( '\n\n'.join(map(lambda x: x.callPackage(), map(lambda x: nameMap[x], sortedSpecs))) )
allPackagesFile.close()
if args.buildRoot != None:
if args.buildRoot is not None:
buildRootFilename = os.path.normpath( args.buildRoot )
if not os.path.exists(os.path.dirname(buildRootFilename)):
os.makedirs(os.path.dirname(buildRootFilename))