diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 1dcffed54354e5166615ea7f1e6353c0e8372050..8c1bd1e74b873ff579d0142589579256296c60b7 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -2,20 +2,22 @@
 # SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 From registry.cn-hangzhou.aliyuncs.com/alinux/alinux3-aa64
 
-RUN yum install python2 python2-devel gcc gcc-c++ wget libyaml-devel -y && \
-    wget https://bootstrap.pypa.io/pip/2.7/get-pip.py && \
-    python2 get-pip.py
-RUN pip install --upgrade setuptools && \
-    pip install --global-option='--with-libyaml' pyyaml && \
-    pip install six sh coloredlogs future fire jinja2 docopt && \
-    yum install python2-lxml python2-pygments python2-six -y && \
-    yum install systemd git make bison flex \
-		gcc-plugin-devel \
-		elfutils-libelf-devel openssl openssl-devel \
-		elfutils-devel-static \
-		glibc-static zlib-static \
-		libstdc++-static \
-    		rpm-build rsync bc perl -y && \
+RUN yum install python3 python3-devel python3-lxml gcc gcc-c++ wget libyaml-devel -y && \
+    wget https://bootstrap.pypa.io/pip/3.6/get-pip.py && \
+    python3 get-pip.py
+RUN pip3 install --upgrade setuptools && \
+    pip3 install --global-option='--with-libyaml' pyyaml && \
+    pip3 install sh coloredlogs fire jinja2 docopt && \
+    yum install make bison flex python3-lxml python3-six python3-pygments \
+                gcc-plugin-devel \
+                systemd git \
+                elfutils-libelf-devel openssl openssl-devel \
+                elfutils-devel-static \
+                glibc-static zlib-static \
+                libstdc++-static \
+                platform-python-devel \
+                rpm-build rsync bc perl -y && \
+    yum install gcc-python-plugin --enablerepo=Plus -y && \ 
     yum clean all
 
 RUN git clone https://gitee.com/src-anolis-sig/gcc-python-plugin.git && \
diff --git a/Dockerfile.x86_64 b/Dockerfile.x86_64
index 26e42c15cf252e38760bd34160656df269bf27a3..ef51c02510b0abb74a440e86a9381edc961b3640 100644
--- a/Dockerfile.x86_64
+++ b/Dockerfile.x86_64
@@ -2,20 +2,21 @@
 # SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 From openanolis/anolisos:8.4-x86_64
 
-RUN yum install python2 python2-devel gcc gcc-c++ wget libyaml-devel -y && \
-    wget https://bootstrap.pypa.io/pip/2.7/get-pip.py && \
-    python2 get-pip.py
-RUN pip install --upgrade setuptools && \
-    pip install --global-option='--with-libyaml' pyyaml && \
-    pip install six sh coloredlogs future fire jinja2 docopt && \
-    yum install make bison flex \
-		gcc-plugin-devel \
-		elfutils-libelf-devel openssl openssl-devel \
-		elfutils-devel-static \
-		glibc-static zlib-static \
-		libstdc++-static \
-		platform-python-devel \
-		rpm-build rsync bc perl -y && \
+RUN yum install python3 python3-devel python3-lxml gcc gcc-c++ wget libyaml-devel -y && \
+    wget https://bootstrap.pypa.io/pip/3.6/get-pip.py && \
+    python3 get-pip.py
+RUN pip3 install --upgrade setuptools && \
+    pip3 install --global-option='--with-libyaml' pyyaml && \
+    pip3 install sh coloredlogs fire jinja2 docopt && \
+    yum install make bison flex python3-lxml python3-six python3-pygments \
+                gcc-plugin-devel.x86_64 \
+                systemd git \
+                elfutils-libelf-devel.x86_64 openssl openssl-devel \
+                elfutils-devel-static \
+                glibc-static zlib-static \
+                libstdc++-static \
+                platform-python-devel \
+                rpm-build rsync bc perl -y && \
     yum install gcc-python-plugin --enablerepo=Plus -y && \
     yum clean all
 
diff --git a/cli.py b/cli.py
index 19c2592e86b2bcd371ea069e0ff61856a653a0b9..029c3a3b81b5ed26fbe8a9cf9de808fc2b38d254 100755
--- a/cli.py
+++ b/cli.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
 # Copyright 2019-2022 Alibaba Group Holding Limited.
 # SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 
@@ -120,7 +120,7 @@ class Plugsched(object):
                     break
             return i
 
-        candidates = map(os.path.basename, glob('%s/configs/%s*' % (self.plugsched_path, self.major)))
+        candidates = list(map(os.path.basename, glob('%s/configs/%s*' % (self.plugsched_path, self.major))))
         if len(candidates) == 0:
             logging.fatal('''Can't find config directory, please add config for kernel %s''', self.KVER)
 
@@ -208,9 +208,22 @@ class Plugsched(object):
 
         logging.info("Succeed!")
 
+    # when python3 working with rpmbuild, the /usr/local/python* path
+    # won't be in included in sys/path which results in some modules
+    # can't be find. So we need to add the PYTHONPATH manually.
+    # The detail about this can be find in
+    # https://fedoraproject.org/wiki/Changes/Making_sudo_pip_safe
+    def add_python_path(self):
+        py_ver = sys.version[0:3]
+        python_path = '/usr/local/lib64/python' + py_ver + '/site-packages'
+        python_path += os.pathsep
+        python_path += '/usr/local/lib/python' + py_ver + '/site-packages'
+        os.environ["PYTHONPATH"] = python_path
+
     def cmd_build(self):
         if not os.path.exists(self.work_dir):
             logging.fatal("plugsched: Can't find %s", self.work_dir)
+        self.add_python_path()
         logging.info("Preparing rpmbuild environment")
         rpmbuild_root = os.path.join(self.plugsched_path, 'rpmbuild')
         self.plugsched_sh.rm('rpmbuild', recursive=True, force=True)
@@ -240,7 +253,7 @@ if __name__ == '__main__':
 
         rpmbuild_root = mkdtemp()
         sh.rpmbuild('--define', '%%_topdir %s' % rpmbuild_root,
-                    '--define', '%%__python %s' % '/usr/bin/python2',
+                    '--define', '%%__python %s' % '/usr/bin/python3',
                     '-rp', '--nodeps', kernel_src_rpm)
 
         src = glob('kernel*/linux*', rpmbuild_root + '/BUILD/')
diff --git a/sched_boundary/process.py b/sched_boundary/process.py
index b6ec506cb9be8658f671550a2232400f04d8b2ee..2c9f88594cef7e5ad26f3c01e576fd781029cb39 100644
--- a/sched_boundary/process.py
+++ b/sched_boundary/process.py
@@ -26,7 +26,7 @@ modpath = None
 Loader.add_constructor(resolver.BaseResolver.DEFAULT_SEQUENCE_TAG,
                        lambda loader, node: set(loader.construct_sequence(node)))
 Dumper.add_representer(set, lambda dumper, node: dumper.represent_list(node))
-Dumper.add_representer(unicode,
+Dumper.add_representer(str,
                        lambda dumper, data: dumper.represent_scalar(u'tag:yaml.org,2002:str', data))
 
 def read_config():
@@ -122,15 +122,16 @@ def inflect(initial_insiders, edges):
     global __insiders
     __insiders = copy.deepcopy(initial_insiders)
     while True:
-        delete_insider = filter(None, map(inflect_one, edges))
+        delete_insider = list(filter(None, list(map(inflect_one, edges))))
         if not delete_insider:
             break
         __insiders -= set(delete_insider)
     return __insiders
 
 global_fn_dict = {}
-def lookup_if_global((name, file)):
+def lookup_if_global(name_and_file):
     # Returns None if function is a gcc built-in function
+    name, file = name_and_file
     file = global_fn_dict.get(name, None) if file == '?' else file
     return (name, file) if file else None
 
@@ -142,7 +143,7 @@ if __name__ == '__main__':
     config = read_config()
     config['mod_files_basename'] = {os.path.basename(f): f for f in config['mod_files']}
     config['mod_header_files'] = [f for f in config['mod_files'] if f.endswith('.h')]
-    metas = map(read_meta, all_meta_files())
+    metas = list(map(read_meta, all_meta_files()))
 
     func_class = {
         'fn':        set(),
@@ -207,7 +208,7 @@ if __name__ == '__main__':
             if struct not in m['struct']: continue
             all_set |= set(m['struct'][struct]['all_fields'])
 
-            for field, users in m['struct'][struct]['public_fields'].iteritems():
+            for field, users in m['struct'][struct]['public_fields'].items():
                 p_user = set(map(tuple, users)) & func_class['public_user']
                 if p_user:
                     user_set |= p_user
diff --git a/sched_boundary/sched_boundary.py b/sched_boundary/sched_boundary.py
index fceae3b8645010d0dbc9a0e0789067d158b509fc..6ed20d1346e02453ca9fa8a3322601c7b45a46b0 100644
--- a/sched_boundary/sched_boundary.py
+++ b/sched_boundary/sched_boundary.py
@@ -1,9 +1,9 @@
+#!/usr/bin/env python3
 # Copyright 2019-2022 Alibaba Group Holding Limited.
 # SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 
 from collections import defaultdict
-from builtins import super
-from itertools import izip, groupby as _groupby
+from itertools import groupby as _groupby
 from yaml import load, dump, resolver, CLoader as Loader, CDumper as Dumper
 import json
 import re
@@ -418,14 +418,14 @@ class SchedBoundaryCollect(SchedBoundary):
 
         def groupby(it, grouper, selector):
             sorted_list = sorted(it, key=grouper)
-            return dict((k, map(selector, v)) for k, v in _groupby(sorted_list, grouper))
+            return dict((k, list(map(selector, v))) for k, v in _groupby(sorted_list, grouper))
 
-        for struct, user_fields in public_fields.iteritems():
+        for struct, user_fields in public_fields.items():
             self.struct_properties[struct.name.name] = {
                 "all_fields": [f.name for f in struct.fields if f.name],
                 "public_fields": groupby(user_fields,
-                    grouper=lambda (user, field): field.name,
-                    selector=lambda (user, field): (user.name, os.path.relpath(user.location.file)))
+                    grouper=lambda user_and_field: user_and_field[1].name,
+                    selector=lambda user_and_field: (user_and_field[0].name, os.path.relpath(user_and_field[0].location.file)))
             }
 
     def collect_edges(self):
diff --git a/src/Makefile.plugsched b/src/Makefile.plugsched
index 48254383981c132e15f05cbc3a703b77ee49a1e3..22b3dbd41ed2fd592bcc07c9fbe6d5bed2741258 100644
--- a/src/Makefile.plugsched
+++ b/src/Makefile.plugsched
@@ -18,9 +18,9 @@ plugsched: scripts prepare sidecar
 	$(MAKE) CFLAGS_MODULE=-fkeep-static-functions -C $(srctree) M=$(plugsched_modpath) modules
 
 sidecar: $(plugsched_modpath)/export_jump_sidecar.h
-	python2 $(plugsched_tmpdir)/sidecar.py $< ./vmlinux $(plugsched_tmpdir) $(plugsched_modpath)
+	python3 $(plugsched_tmpdir)/sidecar.py $< ./vmlinux $(plugsched_tmpdir) $(plugsched_modpath)
 
 collect: $(core-y) $(core-m) $(drivers-y) $(drivers-m) $(net-y) $(net-m) $(virt-y)
 analyze:
-	python2 $(plugsched_tmpdir)/process.py ./vmlinux $(plugsched_tmpdir) $(plugsched_modpath)
+	python3 $(plugsched_tmpdir)/process.py ./vmlinux $(plugsched_tmpdir) $(plugsched_modpath)
 extract: $(objs)
diff --git a/src/sidecar.py b/src/sidecar.py
index ba1d34107d85ca7511d7ae5d6ed261e4c8374726..703f1f12936d39e1204d704e17b8d89eed505245 100644
--- a/src/sidecar.py
+++ b/src/sidecar.py
@@ -28,8 +28,8 @@ if __name__ == '__main__':
     modpath = sys.argv[4]
 
     with open(tmpdir + 'symbol_resolve/undefined_functions_sidecar.h', 'w') as f:
-        for fn, pos in sympos.iteritems():
+        for fn, pos in sympos.items():
             f.write('{"%s", %d},\n' % (fn, pos))
     with open(modpath + 'tainted_functions_sidecar.h', 'w') as f:
-        for fn, pos in sympos.iteritems():
+        for fn, pos in sympos.items():
             f.write('TAINTED_FUNCTION(%s,%d)\n' % (fn, pos if pos else 1))
diff --git a/tools/yaml-diff.py b/tools/yaml-diff.py
index a3c2df9e8fad3ee56eb53d5415e844b633071e9b..cdfe280fd955f402d23d98028282dca15860dbfe 100755
--- a/tools/yaml-diff.py
+++ b/tools/yaml-diff.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
 # Copyright 2019-2022 Alibaba Group Holding Limited.
 # SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause