guard on main

1 files changed, 11 insertions, 10 deletions

diff --git a/exts/pip_find_deps.py b/exts/pip_find_deps.py
index 3666afe..88391f9 100755
--- a/exts/pip_find_deps.py
+++ b/exts/pip_find_deps.py
@@ -230,16 +230,17 @@ def find_build_deps(source, name, version=None):
 
     return build_deps
 
-if len(sys.argv) not in [3, 4]:
-    print('usage: %s PACKAGE_SOURCE_DIR NAME [VERSION]' % sys.argv[0])
-    sys.exit(1)
+if __name__ == '__main__':
+    if len(sys.argv) not in [3, 4]:
+        print('usage: %s PACKAGE_SOURCE_DIR NAME [VERSION]' % sys.argv[0])
+        sys.exit(1)
 
-# Ignore the issue of dependency conflicts for now
+    # Ignore the issue of dependency conflicts for now
 
-# First, given a source return build dependencies in json from
+    # First, given a source return build dependencies in json from
 
-for name, dep in find_build_deps(*sys.argv[1:]).iteritems():
-    print('%s less_than: %s greater_than: %s absolute: %s excludes: %s'
-          % (name, str(dep.less_than), str(dep.greater_than),
-             str(dep.absolute), dep.excludes))
-    print('conflicts: %s' % str(dep.conflicts))
\ No newline at end of file
+    for name, dep in find_build_deps(*sys.argv[1:]).iteritems():
+        print('%s less_than: %s greater_than: %s absolute: %s excludes: %s'
+              % (name, str(dep.less_than), str(dep.greater_than),
+                 str(dep.absolute), dep.excludes))
+        print('conflicts: %s' % str(dep.conflicts))