diff --git a/src/rezplugins/shell/_utils/powershell_base.py b/src/rezplugins/shell/_utils/powershell_base.py
index 20845c0dc..2957a6de8 100644
--- a/src/rezplugins/shell/_utils/powershell_base.py
+++ b/src/rezplugins/shell/_utils/powershell_base.py
@@ -279,28 +279,21 @@ def shebang(self):
         pass
 
     def setenv(self, key, value):
-        is_path = self._is_pathed_key(key)
-        new_value = self.escape_string(value, is_path=is_path)
-
-        self._addline(
-            'Set-Item -Path "Env:{0}" -Value "{1}"'.format(key, new_value)
-        )
+        value = self.escape_string(value, is_path=self._is_pathed_key(key))
+        self._addline('Set-Item -Path "Env:{0}" -Value "{1}"'.format(key, value))
 
     def prependenv(self, key, value):
-        is_path = self._is_pathed_key(key)
-        new_value = self.escape_string(value, is_path=is_path)
+        value = self.escape_string(value, is_path=self._is_pathed_key(key))
 
         # Be careful about ambiguous case in pwsh on Linux where pathsep is :
         # so that the ${ENV:VAR} form has to be used to not collide.
         self._addline(
             'Set-Item -Path "Env:{0}" -Value ("{1}{2}" + (Get-ChildItem -ErrorAction SilentlyContinue "Env:{0}").Value)'
-            .format(key, new_value, self.pathsep)
+            .format(key, value, self.pathsep)
         )
 
     def appendenv(self, key, value):
-        is_path = self._is_pathed_key(key)
-        # Doesn't just escape, but can also perform path normalization
-        modified_value = self.escape_string(value, is_path=is_path)
+        value = self.escape_string(value, is_path=self._is_pathed_key(key))
 
         # Be careful about ambiguous case in pwsh on Linux where pathsep is :
         # so that the ${ENV:VAR} form has to be used to not collide.
@@ -308,7 +301,7 @@ def appendenv(self, key, value):
         # an exception of the Environment Variable is not set already
         self._addline(
             'Set-Item -Path "Env:{0}" -Value ((Get-ChildItem -ErrorAction SilentlyContinue "Env:{0}").Value + "{1}{2}")'
-            .format(key, os.path.pathsep, modified_value))
+            .format(key, os.path.pathsep, value))
 
     def unsetenv(self, key):
         self._addline(
diff --git a/src/rezplugins/shell/gitbash.py b/src/rezplugins/shell/gitbash.py
index 03ea8fdb7..13225ea3b 100644
--- a/src/rezplugins/shell/gitbash.py
+++ b/src/rezplugins/shell/gitbash.py
@@ -23,11 +23,11 @@ class GitBash(Bash):
     """Git Bash shell plugin."""
     pathsep = ':'
 
-    _drive_regex = re.compile(r'([A-Za-z]):\\')
+    _drive_regex = re.compile(r"([A-Za-z]):\\")
 
     @classmethod
     def name(cls):
-        return 'gitbash'
+        return "gitbash"
 
     @classmethod
     def executable_name(cls):
@@ -51,7 +51,6 @@ def find_executable(cls, name, check_syspaths=False):
             else:
                 return settings.executable_fullpath
 
-        # Find the gitbash bash executable using the windows registry.
         exepath = Bash.find_executable(name, check_syspaths=check_syspaths)
 
         if exepath and "system32" in exepath.lower():
@@ -62,9 +61,8 @@ def find_executable(cls, name, check_syspaths=False):
                 "plugins.shell.gitbash.executable_fullpath.",
                 exepath
             )
-            raise ValueError("Gitbash executable is not correct: %s" % exepath)
 
-        exepath = exepath.replace('\\', '\\\\')
+        exepath = exepath.replace("\\", "\\\\")
 
         return exepath
 
@@ -92,7 +90,7 @@ def get_syspaths(cls):
         out_, _ = p.communicate()
         if p.returncode == 0:
             lines = out_.split('\n')
-            line = [x for x in lines if '__PATHS_' in x.split()][0]
+            line = [x for x in lines if "__PATHS_" in x.split()][0]
             # note that we're on windows, but pathsep in bash is ':'
             paths = line.strip().split()[-1].split(':')
         else:
@@ -187,7 +185,7 @@ def lowrepl(match):
         return normalized_path
 
     def shebang(self):
-        self._addline('#! /usr/bin/env bash')
+        self._addline("#!/usr/bin/env bash")
 
 
 def register_plugin():
diff --git a/src/rezplugins/shell/sh.py b/src/rezplugins/shell/sh.py
index d371afb87..bd1f638cb 100644
--- a/src/rezplugins/shell/sh.py
+++ b/src/rezplugins/shell/sh.py
@@ -146,7 +146,6 @@ def escape_string(
                 if is_shell_path:
                     txt = self.as_shell_path(txt)
                 elif is_path:
-                    # potentially calls plugin shell's normalize
                     txt = self.normalize_paths(txt)
 
                 txt = txt.replace('\\', '\\\\')