Add usage message when no arguments.

diff --git a/Lib/tabnanny.py b/Lib/tabnanny.py
index 9af8ecb847d454782c6e6aed76d1ea01eeab7dae..b290fb62cd4afd4e7b338cc18911ba1cdb6c8897 100755 (executable)
--- a/Lib/tabnanny.py
+++ b/Lib/tabnanny.py
@@ -19,9 +19,13 @@ def main():
         opts, args = getopt.getopt(sys.argv[1:], "v")
     except getopt.error, msg:
         print msg
+        return
     for o, a in opts:
         if o == '-v':
             verbose = verbose + 1
+    if not args:
+        print "Usage:", sys.argv[0], "file_or_directory ..."
+        return
     for arg in args:
         check(arg)
 

diff --git a/Tools/idle/tabnanny.py b/Tools/idle/tabnanny.py
index 9af8ecb847d454782c6e6aed76d1ea01eeab7dae..b290fb62cd4afd4e7b338cc18911ba1cdb6c8897 100755 (executable)
--- a/Tools/idle/tabnanny.py
+++ b/Tools/idle/tabnanny.py
@@ -19,9 +19,13 @@ def main():
         opts, args = getopt.getopt(sys.argv[1:], "v")
     except getopt.error, msg:
         print msg
+        return
     for o, a in opts:
         if o == '-v':
             verbose = verbose + 1
+    if not args:
+        print "Usage:", sys.argv[0], "file_or_directory ..."
+        return
     for arg in args:
         check(arg)
 

diff --git a/Tools/scripts/tabnanny.py b/Tools/scripts/tabnanny.py
index 9af8ecb847d454782c6e6aed76d1ea01eeab7dae..b290fb62cd4afd4e7b338cc18911ba1cdb6c8897 100755 (executable)
--- a/Tools/scripts/tabnanny.py
+++ b/Tools/scripts/tabnanny.py
@@ -19,9 +19,13 @@ def main():
         opts, args = getopt.getopt(sys.argv[1:], "v")
     except getopt.error, msg:
         print msg
+        return
     for o, a in opts:
         if o == '-v':
             verbose = verbose + 1
+    if not args:
+        print "Usage:", sys.argv[0], "file_or_directory ..."
+        return
     for arg in args:
         check(arg)
 

diff --git a/Tools/scripts/tabpolice.py b/Tools/scripts/tabpolice.py
index 22005e119e62917c1c06353fea6139f6f0fd8a74..ae97581fd86956392f6f8ee62543031fd960a9f3 100755 (executable)
--- a/Tools/scripts/tabpolice.py
+++ b/Tools/scripts/tabpolice.py
@@ -16,6 +16,7 @@ def main():
                opts, args = getopt.getopt(sys.argv[1:], "qv")
        except getopt.error, msg:
                print msg
+               return
        for o, a in opts:
                if o == '-v':
                        verbose = verbose + 1
@@ -23,6 +24,9 @@ def main():
                if o == '-q':
                        quiet = 1
                        verbose = 0
+       if not args:
+               print "Usage:", sys.argv[0], "file_or_directory ..."
+               return
        for arg in args:
                check(arg)