add Pipfile and Pipfile.lock for use with pipenv

[mfekadu]

csai-scraping uses pipenv and it is just simply intuitive.

Let's set that up here too

It should make issues like #82 less common and easier to resolve/communicate too

Changes needed

• [x] Pipfile
• [x] Pipfile.lock
• [ ] udpates to the README

Here are 2 nice cheat sheets

• https://gist.github.com/bradtraversy/c70a93d6536ed63786c434707b898d55
• https://medium.com/@bettercallshao/pythons-development-environment-manager-a-practitioner-s-cheat-sheet-55e44e99ac2a

Another guide

• https://realpython.com/pipenv-guide/

Pipfiles are toml files

• so learn toml in Y minutes

[mfekadu]

My process for making the Pipfile

1. pipenv --python 3.6.8

2. pipenv shell

3. ./run.sh

...
ModuleNotFoundError: No module named 'FOOBAR_FIZZBUZZ'

4. pipenv install FOOBAR_FIZZBUZZ

5. repeat 3-4 until everything works

6. manually add package_name = "*" to the other nice-to-have packages

[mfekadu]

Problems

• noticed a "slow locking" after pipenv install pandas. Perhaps pandas has many dependencies itself and thus resolving the dependency graph is difficult?

[mfekadu]

mostly done

https://github.com/calpoly-csai/api/blob/48336b06f95e3676c5322d6760c34968b2d145d5/Pipfile#L1-L66

https://github.com/calpoly-csai/api/blob/48336b06f95e3676c5322d6760c34968b2d145d5/Pipfile.lock#L1-L24

just need to update the readme to look like this