Build Manual da Aplicação

Boa tarde!

Estou tentando fazer o Build manual da aplicação python num Linux CentOS 7 seguindo os passos do instrutor na Aula 2, porém quando executo o passo abaixo:

virtualenv --always-copy venv-django-todolist

Eu obtenho o seguinte erro:

Installing setuptools, pip, wheel...

  Complete output from command /home/EUR/raeo/jenki...todolist/bin/python3 - setuptools pip wheel:
  Traceback (most recent call last):
  File "<stdin>", line 4, in <module>
  File "/home/EUR/raeo/jenkins-todo-list/venv-django-todolist/lib64/python3.6/tempfile.py", line 45, in <module>
    from random import Random as _Random
  File "/home/EUR/raeo/jenkins-todo-list/venv-django-todolist/lib64/python3.6/random.py", line 42, in <module>
    from math import log as _log, exp as _exp, pi as _pi, e as _e, ceil as _ceil
ModuleNotFoundError: No module named 'math'
----------------------------------------
...Installing setuptools, pip, wheel...done.
Traceback (most recent call last):
  File "/usr/local/bin/virtualenv", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.6/site-packages/virtualenv.py", line 870, in main
    symlink=options.symlink,
  File "/usr/local/lib/python3.6/site-packages/virtualenv.py", line 1173, in create_environment
    install_wheel(to_install, py_executable, search_dirs, download=download)
  File "/usr/local/lib/python3.6/site-packages/virtualenv.py", line 1019, in install_wheel
    _install_wheel_with_search_dir(download, project_names, py_executable, search_dirs)
  File "/usr/local/lib/python3.6/site-packages/virtualenv.py", line 1110, in _install_wheel_with_search_dir
    call_subprocess(cmd, show_stdout=False, extra_env=env, stdin=script)
  File "/usr/local/lib/python3.6/site-packages/virtualenv.py", line 963, in call_subprocess
    raise OSError("Command {} failed with error code {}".format(cmd_desc, proc.returncode))
OSError: Command /home/EUR/raeo/jenki...todolist/bin/python3 - setuptools pip wheel failed with error code 1

Alguem já passou por isso e sabe como resolver?

estou rodando a seguinte versao do python:

pip 9.0.3 from /usr/lib/python3.6/site-packages (python 3.6)
Python 2.7.5

Aguardo vossa ajuda!

Abraços, Rafael Estevam