ImportError: No module named _io

[surbhicis]

I followed this

make
. venv/bin/activate
pip install buildozer python-for-android
buildozer android debug deploy run

and got error please guide me

(venv) cis@CISM571:~/scanner/garden.zbarcam$ buildozer android debug deploy run logcat
 Check configuration tokens
WARNING: Config token app android.sdk is deprecated and ignored, but you set value 20
Ensure build layout
Check configuration tokens
Preparing build
 Check requirements for android
Run 'dpkg --version'
Cwd None
Debian 'dpkg' package management program version 1.18.4 (amd64).
This is free software; see the GNU General Public License version 2 or
later for copying conditions. There is NO warranty.
Search for Git (git)
 -> found at /usr/bin/git
 Search for Cython (cython)
 -> found at /home/cis/scanner/garden.zbarcam/venv/bin/cython
Search for Java compiler (javac)
  -> found at /usr/lib/jvm/java-8-openjdk-amd64/bin/javac
 Search for Java keytool (keytool)
  -> found at /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/keytool
Install platform
 Run '/home/cis/scanner/garden.zbarcam/venv/bin/python3 -m pip install -q  \'appdirs\' \'colorama>=0.3.3\' \'jinja2\' \'six\' \'enum34; python_version<"3.4"\' \'sh>=1.10; sys_platform!="nt"\' \'pep517\' \'pytoml\' \'virtualenv\''
 Cwd None
 Apache ANT found at /home/cis/.buildozer/android/platform/apache-ant-1.9.4
 Android SDK found at /home/cis/.buildozer/android/platform/android-sdk
 Android NDK found at /home/cis/.buildozer/android/platform/android-ndk-r17c
Check application requirements
 Check garden requirements
 Run 'virtualenv --python=python2.7 ./venv'
Cwd /home/cis/scanner/garden.zbarcam/.buildozer
Traceback (most recent call last):
  File "/home/cis/scanner/garden.zbarcam/venv/lib/python3.5/site-packages/virtualenv.py", line 34, in <module>
    import tempfile
  File "/usr/local/lib/python2.7/tempfile.py", line 32, in <module>
    import io as _io
  File "/usr/local/lib/python2.7/io.py", line 51, in <module>
    import _io
ImportError: No module named _io
Running virtualenv with interpreter /usr/local/bin/python2.7