We're going to start by installing Homebrew which will make installing everything else we need much easier.
Open a Terminal window and run the following commands:
1 2 xcode-select --install /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Now we can easily install Python with Homebrew using the following:
1 brew install python
Now we'll use PyScaffold to initialize a project for us.
1 2 3 pip2 install pyscaffold putup ythonpay cd ythonpay
When building software you will frequently use libraries and tools from a third party. Since they have their own development lifecycles and versions we want to be able to define a specific version of that dependency to use in our software. We want to do that with a tool and a file.
For Python we'll use the tool pip and our dependencies will be defined in the file
1 # pip is installed with Python
We're going to use the testing library pytest to write our tests.
Edit the file
requirements.txt and add pytest as a testing dependency:
Then we retrieve pytest by running
pip2 install -r requirements.txt.
Finally we initialize pytest by running
Create the file
tests/test_skeleton.py with the following contents:
1 2 3 4 5 import pytest from ythonpay.skeleton import translate_word def test_translate_word(): assert translate_word("apple") == "appleway"
Then run the test with the command
python setup.py test to see the results:
1 2 3 NameError: global name 'translate_word' is not defined tests/test_skeleton.py:8: NameError