add: python functional script

Author: andrehora

examples/python_functional.py

@@ -0,0 +1,36 @@
+from gitevo import GitEvo, ParsedCommit
+
+
+remote = 'https://github.com/pallets/flask'
+
+evo = GitEvo(repo=remote, extension='.py')
+
+@evo.metric('loc', show_version_chart=False)
+def loc(commit: ParsedCommit):
+    return commit.loc
+
+@evo.metric('lambda', show_version_chart=True)
+def count_dynamic_features(commit: ParsedCommit):
+    return commit.count_nodes('lambda')
+
+@evo.metric('list_comprehension', show_version_chart=True)
+def count_dynamic_features(commit: ParsedCommit):
+    return commit.count_nodes('list_comprehension')
+
+@evo.metric('dictionary_comprehension', show_version_chart=True)
+def count_dynamic_features(commit: ParsedCommit):
+    return commit.count_nodes('dictionary_comprehension')
+
+@evo.metric('set_comprehension', show_version_chart=True)
+def count_dynamic_features(commit: ParsedCommit):
+    return commit.count_nodes('set_comprehension')
+
+@evo.metric('generator_expression', show_version_chart=True)
+def count_dynamic_features(commit: ParsedCommit):
+    return commit.count_nodes('generator_expression')
+
+@evo.metric('yield', show_version_chart=True)
+def count_dynamic_features(commit: ParsedCommit):
+    return commit.count_nodes('yield')
+
+evo.run()