diff --git a/mesonbuild/backend/vs2010backend.py b/mesonbuild/backend/vs2010backend.py
index f3e9b4fe2..3fe8b1153 100644
--- a/mesonbuild/backend/vs2010backend.py
+++ b/mesonbuild/backend/vs2010backend.py
@@ -14,7 +14,6 @@
 
 import os, sys
 import pickle
-import re
 import xml.dom.minidom
 import xml.etree.ElementTree as ET
 
diff --git a/mesonbuild/build.py b/mesonbuild/build.py
index db92858e7..47d589db0 100644
--- a/mesonbuild/build.py
+++ b/mesonbuild/build.py
@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from . import coredata
 from . import environment
 from . import dependencies
 from . import mlog
diff --git a/mesonbuild/dependencies.py b/mesonbuild/dependencies.py
index aa3927f46..ba70f4e4d 100644
--- a/mesonbuild/dependencies.py
+++ b/mesonbuild/dependencies.py
@@ -20,7 +20,7 @@
 # package before this gets too big.
 
 import re
-import os, stat, glob, subprocess, shutil
+import os, stat, glob, shutil
 import sysconfig
 from collections import OrderedDict
 from . mesonlib import MesonException, version_compare, version_compare_many, Popen_safe
diff --git a/mesonbuild/interpreter.py b/mesonbuild/interpreter.py
index c92adaf30..1f72d5f8f 100644
--- a/mesonbuild/interpreter.py
+++ b/mesonbuild/interpreter.py
@@ -29,7 +29,7 @@ from .interpreterbase import check_stringlist, noPosargs, noKwargs, stringArgs
 from .interpreterbase import InterpreterException, InvalidArguments, InvalidCode
 from .interpreterbase import InterpreterObject, MutableInterpreterObject
 
-import os, sys, subprocess, shutil, uuid, re
+import os, sys, shutil, uuid
 
 import importlib
 
diff --git a/mesonbuild/mesonlib.py b/mesonbuild/mesonlib.py
index 622cd04bf..fab5803b1 100644
--- a/mesonbuild/mesonlib.py
+++ b/mesonbuild/mesonlib.py
@@ -14,7 +14,7 @@
 
 """A library of random helper functionality."""
 
-import platform, subprocess, operator, os, shutil, re, sys
+import platform, subprocess, operator, os, shutil, re
 
 from glob import glob
 
diff --git a/mesonbuild/modules/pkgconfig.py b/mesonbuild/modules/pkgconfig.py
index f74f9e9a3..6c59f5218 100644
--- a/mesonbuild/modules/pkgconfig.py
+++ b/mesonbuild/modules/pkgconfig.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from .. import coredata, build
+from .. import build
 from .. import mesonlib
 from .. import mlog
 import os
diff --git a/mesonbuild/modules/qt5.py b/mesonbuild/modules/qt5.py
index da1ac834a..35a475a5a 100644
--- a/mesonbuild/modules/qt5.py
+++ b/mesonbuild/modules/qt5.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os, subprocess
+import os
 from .. import mlog
 from .. import build
 from ..mesonlib import MesonException, Popen_safe
diff --git a/mesonbuild/scripts/meson_exe.py b/mesonbuild/scripts/meson_exe.py
index 938ec8718..5c5c31776 100644
--- a/mesonbuild/scripts/meson_exe.py
+++ b/mesonbuild/scripts/meson_exe.py
@@ -17,9 +17,8 @@ import sys
 import argparse
 import pickle
 import platform
-import subprocess
 
-from ..mesonlib import MesonException, Popen_safe
+from ..mesonlib import Popen_safe
 
 options = None
 
diff --git a/mesonbuild/scripts/meson_install.py b/mesonbuild/scripts/meson_install.py
index 0df79e39b..11dd32094 100644
--- a/mesonbuild/scripts/meson_install.py
+++ b/mesonbuild/scripts/meson_install.py
@@ -16,7 +16,7 @@ import sys, pickle, os, shutil, subprocess, gzip, platform
 from glob import glob
 from . import depfixer
 from . import destdir_join
-from ..mesonlib import MesonException, Popen_safe
+from ..mesonlib import Popen_safe
 
 install_log_file = None
 
diff --git a/mesonbuild/scripts/scanbuild.py b/mesonbuild/scripts/scanbuild.py
index 2ef22bd7e..e17d2ad8a 100644
--- a/mesonbuild/scripts/scanbuild.py
+++ b/mesonbuild/scripts/scanbuild.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import sys, os
+import os
 import subprocess
 import shutil
 import tempfile
diff --git a/mesonbuild/scripts/symbolextractor.py b/mesonbuild/scripts/symbolextractor.py
index 92724957f..bfd629f64 100644
--- a/mesonbuild/scripts/symbolextractor.py
+++ b/mesonbuild/scripts/symbolextractor.py
@@ -20,9 +20,9 @@
 # This file is basically a reimplementation of
 # http://cgit.freedesktop.org/libreoffice/core/commit/?id=3213cd54b76bc80a6f0516aac75a48ff3b2ad67c
 
-import os, sys, subprocess
+import os, sys
 from .. import mesonlib
-from ..mesonlib import MesonException, Popen_safe
+from ..mesonlib import Popen_safe
 import argparse
 
 parser = argparse.ArgumentParser()
diff --git a/mesonbuild/scripts/yelphelper.py b/mesonbuild/scripts/yelphelper.py
index 7431a8199..fe3e82a0f 100644
--- a/mesonbuild/scripts/yelphelper.py
+++ b/mesonbuild/scripts/yelphelper.py
@@ -12,12 +12,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import sys, os
+import os
 import subprocess
 import shutil
 import argparse
 from .. import mlog
-from ..mesonlib import MesonException
 from . import destdir_join
 
 parser = argparse.ArgumentParser()
diff --git a/run_tests.py b/run_tests.py
index 752354e95..b85478fd0 100755
--- a/run_tests.py
+++ b/run_tests.py
@@ -14,8 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import subprocess, sys, os
-import shutil
+import subprocess, sys
 from mesonbuild import mesonlib
 
 if __name__ == '__main__':
diff --git a/run_unittests.py b/run_unittests.py
index 21d029d66..d11c3f3bc 100755
--- a/run_unittests.py
+++ b/run_unittests.py
@@ -20,7 +20,7 @@ import tempfile
 from glob import glob
 import mesonbuild.environment
 from mesonbuild.environment import detect_ninja
-from mesonbuild.dependencies import PkgConfigDependency, Qt5Dependency
+from mesonbuild.dependencies import PkgConfigDependency
 
 def get_soname(fname):
     # HACK, fix to not use shell.
diff --git a/setup.py b/setup.py
index 46f275040..b8f04afc3 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,6 @@
 
 import os
 import sys
-from os import path
 
 if sys.version_info[0] < 3:
     print('Tried to install with Python 2, Meson only supports Python 3.')
@@ -34,7 +33,6 @@ except ImportError:
 
 from distutils.file_util import copy_file
 from distutils.dir_util import mkpath
-from stat import ST_MODE
 
 class install_scripts(orig):
     def run(self):
@@ -49,7 +47,7 @@ class install_scripts(orig):
         # We want the files to be installed without a suffix on Unix
         for infile in self.get_inputs():
             in_stripped = infile[:-3] if infile.endswith('.py') else infile
-            outfile = path.join(self.install_dir, in_stripped)
+            outfile = os.path.join(self.install_dir, in_stripped)
             # NOTE: Mode is preserved by default
             copy_file(infile, outfile, dry_run=self.dry_run)
             self.outfiles.append(outfile)
diff --git a/test cases/common/107 postconf/postconf.py b/test cases/common/107 postconf/postconf.py
index 50c91ca24..950c7064a 100644
--- a/test cases/common/107 postconf/postconf.py	
+++ b/test cases/common/107 postconf/postconf.py	
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-import sys, os
+import os
 
 template = '''#pragma once
 
diff --git a/test cases/common/113 generatorcustom/catter.py b/test cases/common/113 generatorcustom/catter.py
index 7a6c085df..198fa98e2 100755
--- a/test cases/common/113 generatorcustom/catter.py	
+++ b/test cases/common/113 generatorcustom/catter.py	
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-import sys, os
+import sys
 
 output = sys.argv[-1]
 inputs = sys.argv[1:-1]
diff --git a/test cases/common/113 generatorcustom/gen.py b/test cases/common/113 generatorcustom/gen.py
index c8434974b..c1e34ed6c 100755
--- a/test cases/common/113 generatorcustom/gen.py	
+++ b/test cases/common/113 generatorcustom/gen.py	
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-import sys, os
+import sys
 
 ifile = sys.argv[1]
 ofile = sys.argv[2]
diff --git a/test cases/common/129 object only target/obj_generator.py b/test cases/common/129 object only target/obj_generator.py
index 0a4537bb6..a1f7421eb 100755
--- a/test cases/common/129 object only target/obj_generator.py	
+++ b/test cases/common/129 object only target/obj_generator.py	
@@ -2,7 +2,7 @@
 
 # Mimic a binary that generates an object file (e.g. windres).
 
-import sys, shutil, subprocess
+import sys, subprocess
 
 if __name__ == '__main__':
     if len(sys.argv) != 4:
diff --git a/test cases/common/57 custom target chain/usetarget/subcomp.py b/test cases/common/57 custom target chain/usetarget/subcomp.py
index 6f4b68603..52dc0bbb5 100755
--- a/test cases/common/57 custom target chain/usetarget/subcomp.py	
+++ b/test cases/common/57 custom target chain/usetarget/subcomp.py	
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-import sys, os
+import sys
 
 with open(sys.argv[1], 'rb') as ifile:
     with open(sys.argv[2], 'w') as ofile:
diff --git a/test cases/common/59 object generator/obj_generator.py b/test cases/common/59 object generator/obj_generator.py
index 204f1eb40..70f9204fa 100755
--- a/test cases/common/59 object generator/obj_generator.py	
+++ b/test cases/common/59 object generator/obj_generator.py	
@@ -2,7 +2,7 @@
 
 # Mimic a binary that generates an object file (e.g. windres).
 
-import sys, shutil, subprocess
+import sys, subprocess
 
 if __name__ == '__main__':
     if len(sys.argv) != 4:
diff --git a/test cases/common/95 dep fallback/subprojects/boblib/genbob.py b/test cases/common/95 dep fallback/subprojects/boblib/genbob.py
index 824194b0d..7da323382 100644
--- a/test cases/common/95 dep fallback/subprojects/boblib/genbob.py	
+++ b/test cases/common/95 dep fallback/subprojects/boblib/genbob.py	
@@ -1,6 +1,5 @@
 #!/usr/bin/env python
 
-import os
 import sys
 
 with open(sys.argv[1], 'w') as f:
diff --git a/test cases/common/98 gen extra/srcgen.py b/test cases/common/98 gen extra/srcgen.py
index 73bc33743..8988cd92f 100755
--- a/test cases/common/98 gen extra/srcgen.py	
+++ b/test cases/common/98 gen extra/srcgen.py	
@@ -1,7 +1,6 @@
 #!/usr/bin/env python3
 
 import sys
-import os
 import argparse
 
 parser = argparse.ArgumentParser()
diff --git a/test cases/vala/8 generated sources/src/copy_file.py b/test cases/vala/8 generated sources/src/copy_file.py
index b90d91fd5..ff42ac359 100644
--- a/test cases/vala/8 generated sources/src/copy_file.py	
+++ b/test cases/vala/8 generated sources/src/copy_file.py	
@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
 
-import os
 import sys
 import shutil