revisit ci/bootstrap.py

ci/bootstrap.py

@@ -1,14 +1,19 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
-from __future__ import absolute_import, print_function, unicode_literals
+from __future__ import absolute_import
+from __future__ import print_function
+from __future__ import unicode_literals
 
 import os
+import subprocess
 import sys
 from os.path import abspath
 from os.path import dirname
 from os.path import exists
 from os.path import join
 
+import jinja2
+
 if __name__ == "__main__":
     base_path = dirname(dirname(abspath(__file__)))
     print("Project path: {0}".format(base_path))
@@ -18,8 +23,6 @@
     else:
         bin_path = join(env_path, "bin")
     if not exists(env_path):
-        import subprocess
-
         print("Making bootstrap env in: {0} ...".format(env_path))
         try:
             subprocess.check_call(["virtualenv", env_path])
@@ -32,10 +35,6 @@
         print("Re-executing with: {0}".format(python_executable))
         os.execv(python_executable, [python_executable, __file__])
 
-    import jinja2
-
-    import subprocess
-
     jinja = jinja2.Environment(
         loader=jinja2.FileSystemLoader(join(base_path, "ci", "templates")),
         trim_blocks=True,
@@ -48,11 +47,14 @@
         # WARNING: 'tox' must be installed globally or in the project's virtualenv
         for line in subprocess.check_output(['tox', '--listenvs'], universal_newlines=True).splitlines()
     ]
-    tox_environments = [line for line in tox_environments if line not in ['clean', 'report', 'docs', 'check']]
+    tox_environments = [line for line in tox_environments
+                        if line not in ['clean', 'report', 'docs', 'check']]
 
     template_vars = {'tox_environments': tox_environments}
     for py_ver in '27 34 35 py'.split():
-        template_vars['py%s_environments' % py_ver] = [x for x in tox_environments if x.startswith('py' + py_ver)]
+        template_vars['py%s_environments' % py_ver] = [
+            x for x in tox_environments
+            if x.startswith('py' + py_ver)]
 
     for name in os.listdir(join("ci", "templates")):
         with open(join(base_path, name), "w") as fh: