I am runnig the following comand `!pip install bert-tensorflow natural-questions`, and it gives me the error :

```
Collecting bert-tensorflow
  Using cached https://files.pythonhosted.org/packages/20/16/0f9376af49c6adcfbaf2470a8f500105a74dd803aa54ac0110af445837b5/bert_tensorflow-1.0.4-py2.py3-none-any.whl
Collecting natural-questions
  Using cached https://files.pythonhosted.org/packages/d5/d7/020da0200e8129c0ae7a1da998c7ff84dd2f3a4660711b2aa39286c67f85/natural_questions-1.0.4-py2.py3-none-any.whl
Requirement already satisfied: six in /usr/local/lib/python3.6/dist-packages (from bert-tensorflow) (1.15.0)
Requirement already satisfied: tornado in /usr/local/lib/python3.6/dist-packages (from natural-questions) (5.1.1)
Requirement already satisfied: jinja2 in /usr/local/lib/python3.6/dist-packages (from natural-questions) (2.11.2)
Collecting wsgiref
  Using cached https://files.pythonhosted.org/packages/41/9e/309259ce8dff8c596e8c26df86dbc4e848b9249fd36797fd60be456f03fc/wsgiref-0.1.2.zip
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

```

I am working on google colab.
Thanks