diff --git a/Tools/c-analyzer/c_common/scriptutil.py b/Tools/c-analyzer/c_common/scriptutil.py
index ce69af2b6bdee5..ab9d74a9cbf145 100644
--- a/Tools/c-analyzer/c_common/scriptutil.py
+++ b/Tools/c-analyzer/c_common/scriptutil.py
@@ -1,6 +1,5 @@
 import argparse
 import contextlib
-import fnmatch
 import logging
 import os
 import os.path
diff --git a/Tools/c-analyzer/c_parser/parser/_info.py b/Tools/c-analyzer/c_parser/parser/_info.py
index cc21931b66cc57..340223db933c90 100644
--- a/Tools/c-analyzer/c_parser/parser/_info.py
+++ b/Tools/c-analyzer/c_parser/parser/_info.py
@@ -1,4 +1,4 @@
-import re
+#import re
 
 from ..info import KIND, ParsedItem, FileInfo
 
diff --git a/Tools/c-analyzer/c_parser/preprocessor/__main__.py b/Tools/c-analyzer/c_parser/preprocessor/__main__.py
index 55aa8752dce724..1ef55f55c38c5b 100644
--- a/Tools/c-analyzer/c_parser/preprocessor/__main__.py
+++ b/Tools/c-analyzer/c_parser/preprocessor/__main__.py
@@ -2,7 +2,6 @@
 import sys
 
 from c_common.scriptutil import (
-    CLIArgSpec as Arg,
     add_verbosity_cli,
     add_traceback_cli,
     add_kind_filtering_cli,
diff --git a/Tools/c-analyzer/cpython/_analyzer.py b/Tools/c-analyzer/cpython/_analyzer.py
index 68d6b31cf2b6f0..f07fa8af495e17 100644
--- a/Tools/c-analyzer/cpython/_analyzer.py
+++ b/Tools/c-analyzer/cpython/_analyzer.py
@@ -1,5 +1,4 @@
 import os.path
-import re
 
 from c_common.clsutil import classonly
 from c_parser.info import (
diff --git a/Tools/c-analyzer/distutils/cygwinccompiler.py b/Tools/c-analyzer/distutils/cygwinccompiler.py
index a3505f31f1f0a2..a8409179d677a7 100644
--- a/Tools/c-analyzer/distutils/cygwinccompiler.py
+++ b/Tools/c-analyzer/distutils/cygwinccompiler.py
@@ -45,7 +45,6 @@
 # * mingw gcc 3.2/ld 2.13 works
 #   (ld supports -shared)
 
-import os
 import sys
 from subprocess import Popen, PIPE, check_output
 import re
diff --git a/Tools/c-analyzer/distutils/unixccompiler.py b/Tools/c-analyzer/distutils/unixccompiler.py
index 1a3a8e5255070d..1cb1964214eb30 100644
--- a/Tools/c-analyzer/distutils/unixccompiler.py
+++ b/Tools/c-analyzer/distutils/unixccompiler.py
@@ -13,7 +13,7 @@
   * link shared library handled by 'cc -shared'
 """
 
-import os, sys, re
+import os, sys
 
 from distutils.dep_util import newer
 from distutils.ccompiler import CCompiler, gen_preprocess_options