Fix unit tests on macOS when gnureadline is installed

As similar try/except needed to be added to a couple unit test files to try to import gnureadline as readline and fallback to importing readline.

1 files changed, 12 insertions, 1 deletions

diff --git a/tests/test_argparse.py b/tests/test_argparse.py
index fb8836f3..ae3bde98 100644
--- a/tests/test_argparse.py
+++ b/tests/test_argparse.py
@@ -5,7 +5,6 @@ Cmd2 testing for argument parsing
 import argparse
 import functools
 import pytest
-import readline
 import sys
 
 import cmd2
@@ -14,6 +13,18 @@ import six
 
 from conftest import run_cmd, StdOut
 
+# Prefer statically linked gnureadline if available (for macOS compatibility due to issues with libedit)
+try:
+    import gnureadline as readline
+except ImportError:
+    # Try to import readline, but allow failure for convenience in Windows unit testing
+    # Note: If this actually fails, you should install readline on Linux or Mac or pyreadline on Windows
+    try:
+        # noinspection PyUnresolvedReferences
+        import readline
+    except ImportError:
+        pass
+
 
 class ArgparseApp(cmd2.Cmd):
     def __init__(self):