Fixed bug where pyscripts could edit cmd2.Cmd.py_locals dictionary.

Fixed bug where cmd2 set sys.path[0] for a pyscript to its cwd instead of the script's directory.
Fixed bug where sys.path was not being restored after a pyscript ran.
Setting the following pyscript variables:
    __name__: __main__
    __file__: script path (as typed)
Removed do_py.run() function since it didn't handle arguments and offered no benefit over run_pyscript.

1 files changed, 20 insertions, 0 deletions

diff --git a/tests/pyscript/environment.py b/tests/pyscript/environment.py
new file mode 100644
index 00000000..5e4d93d6
--- /dev/null
+++ b/tests/pyscript/environment.py
@@ -0,0 +1,20 @@
+# flake8: noqa F821
+# Tests that cmd2 populates __name__, __file__, and sets sys.path[0] to our directory
+import os
+import sys
+app.cmd_echo = True
+
+if __name__ != '__main__':
+    print("Error: __name__ is: {}".format(__name__))
+    quit()
+
+if __file__ != sys.argv[0]:
+    print("Error: __file__ is: {}".format(__file__))
+    quit()
+
+our_dir = os.path.dirname(os.path.abspath(__file__))
+if our_dir != sys.path[0]:
+    print("Error: our_dir is: {}".format(our_dir))
+    quit()
+
+print("PASSED")