Small cleanups.

* Import url(lib|parse|lib2) if needed by the module rather than relying
  on module_utils.urls to do so.
* Remove stdlib modules from requirements
* Use the if __name__ conditional for invoking main()

network/basics/get_url.py

@@ -113,7 +113,7 @@ options:
       - all arguments accepted by the M(file) module also work here
     required: false
 # informational: requirements for nodes
-requirements: [ urllib2, urlparse ]
+requirements: [ ]
 author: "Jan-Piet Mens (@jpmens)"
 '''
 
@@ -125,6 +125,8 @@ EXAMPLES='''
   get_url: url=http://example.com/path/file.conf dest=/etc/foo.conf sha256sum=b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c
 '''
 
+import urlparse
+
 try:
     import hashlib
     HAS_HASHLIB=True
@@ -315,4 +317,5 @@ def main():
 # import module snippets
 from ansible.module_utils.basic import *
 from ansible.module_utils.urls import *
-main()
+if __name__ == '__main__':
+    main()

packaging/os/rpm_key.py

@@ -60,9 +60,10 @@ EXAMPLES = '''
 # Example action to ensure a key is not present in the db
 - rpm_key: state=absent key=DEADB33F
 '''
+import re
 import syslog
 import os.path
-import re
+import urllib2
 import tempfile
 
 def is_pubkey(string):
@@ -203,4 +204,5 @@ def main():
 # import module snippets
 from ansible.module_utils.basic import *
 from ansible.module_utils.urls import *
-main()
+if __name__ == '__main__':
+    main()