PyShell adds dots on first invocation

[Titus Barik]

Using py-version 6.0.9 and Emacs 24 on Windows. Create a simple script ("hello.py") with contents such as:

print "Hello"

Then C-c C-c. The expected output should be something like:

>>> Hello

Instead, the actual buffer adds several periods (but only the first time):

... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... >>> ... ... ... ... ... ... ... ... ... >>> ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... >>> Hello

Possibly related is that you cannot send a buffer to Python without first creating a file on disk. For instance, using the scratch buffer (in python-mode) results in the following error on C-c C-c:

>>> Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "c:/Users/tbarik/AppData/Local/Temp/python-69840mQB.py", line 4, in <module>
    import os; os.chdir("C:\Users\tbarik")
WindowsError: [Error 123] The filename, directory name, or volume label syntax is incorrect: 'C:\\Users\tbarik'