--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.7/site-packages/planemo/exit_codes.py	Thu May 14 14:56:58 2020 -0400
@@ -0,0 +1,30 @@
+"""Numeric constants for planemo exit codes."""
+
+# Operation succeeded.
+EXIT_CODE_OK = 0
+
+# Generic failure.
+EXIT_CODE_GENERIC_FAILURE = 1
+
+# If iterating or tools for instance, not tool xml files are found.
+EXIT_CODE_NO_SUCH_TARGET = 2
+
+# An unknown file type was attempted to be processed with planemo.
+EXIT_CODE_UNKNOWN_FILE_TYPE = 4
+
+# An unsupported file type was supplied for a given operation.
+EXIT_CODE_UNSUPPORTED_FILE_TYPE = 5
+
+# A dependency of this operation was unavailable (e.g. conda).
+EXIT_CODE_FAILED_DEPENDENCIES = 6
+
+# Attempt to do a one time action that already happened.
+EXIT_CODE_ALREADY_EXISTS = 7
+
+
+class ExitCodeException(Exception):
+    """Exception used by planemo framework to track exit codes for CLI."""
+
+    def __init__(self, exit_code):
+        """Specify integer exit code to exit planemo with."""
+        self.exit_code = exit_code