Use entry_points instead of scripts for cross-platform compatibility

This makes `tx` work right out of the box when you `pip install transifex-client` on Windows.

contrib/tx.spec

@@ -5,7 +5,7 @@ added_files = [
     ('../txclib/cacert.pem', 'txclib'),
 ]
 
-a = Analysis(['../tx'],
+a = Analysis(['../txclib/cmdline.py'],
              binaries=None,
              datas=added_files,
              hiddenimports=[],

setup.py

@@ -13,7 +13,7 @@ def get_file_content(filename):
 setup(
     name="transifex-client",
     version=txclib.__version__,
-    scripts=['tx'],
+    entry_points={'console_scripts': ['tx=txclib.cmdline:main']},
     description="A command line interface for Transifex",
     long_description=get_file_content('README.rst'),
     author="Transifex",

tx → txclib/cmdline.py

@@ -36,10 +36,12 @@ def exithandler(signum,frame):
     sys.setdefaultencoding('utf-8')
 
 
-def main(argv):
+def main(argv=None):
     """
     Here we parse the flags (short, long) and we instantiate the classes.
     """
+    if argv is None:
+        argv = sys.argv[1:]
     usage = "usage: %prog [options] command [cmd_options]"
     description = "This is the Transifex command line client which"\
 		" allows you to manage your translations locally and sync"\
@@ -110,4 +112,4 @@ def main(argv):
 # Run baby :) ... run
 if __name__ == "__main__":
     # sys.argv[0] is the name of the script that we’re running.
-    main(sys.argv[1:])
+    main()