Remove distutils dependency (#315)

* Remove distutils dependency

* Fix up exception message to match test expectations

CHANGELOG.md

@@ -2,9 +2,10 @@
 
 ### Version 0.4.2
 - Dropped Python 3.5 from support matrix as it is EOL.
+- Remove dependency on `distutils` that is deprecated in Python 3.10.
 
 ### Version 0.4.1
-- HOT FIX: Fixing an issue with `requests_kerbose` not imported correctly from the changes in `0.4.0`.
+- HOT FIX: Fixing an issue with `requests_kerberos` not imported correctly from the changes in `0.4.0`.
 
 ### Version 0.4.0
 - Ensure `server_cert_validation=ignore` supersedes ca_trust_path/env overrides

winrm/transport.py

@@ -6,7 +6,6 @@
 import requests.auth
 import warnings
 
-from distutils.util import strtobool
 from winrm.exceptions import InvalidCredentialsError, WinRMError, WinRMTransportError
 from winrm.encryption import Encryption
 
@@ -48,6 +47,18 @@
 __all__ = ['Transport']
 
 
+def strtobool(value):
+    value = value.lower()
+    if value in ('true', 't', 'yes', 'y', 'on', '1'):
+        return True
+
+    elif value in ('false', 'f', 'no', 'n', 'off', '0'):
+        return False
+
+    else:
+        raise ValueError("invalid truth value '%s'" % value)
+
+
 class UnsupportedAuthArgument(Warning):
     pass