AAR pt 2 (Python)
If you haven’t had a chance to read the first entry in the series for context, you can do so here. In this post I’ll be covering my most important lessons learned from everyone’s favorite language, Python. I’ll also have some React.js and React-Redux at the end, since the majority of these lessons learned were made while I was on-boarding with a full-stack web developer.
- You can run python2 and python3 side-by-side, just need to differentiate calls by appending a ‘3’ to calls to the python3 tools (i.e. “python3” vs. “python” or “pip3” vs. “pip”
- You can install required dependancies in a project after a git clone by running ‘pip install -r YOURREQDOC.txt"
- In Python2 use
print "myString", in Python3 useprint("myString") - If you ever receive an “unindent does not match” error, it’s probably because there are tabs mixed in with spaces.
- “console.log” output only visible in the Google Chrome inspector console (NOT the terminal running the application)
- In React-Redux the immutable ‘store’ singleton maintains the application state.
- The React-Redux store can have new versions created with methods known as ‘reducers’
- In the React-Redux architecture files are organized by layer (rather than by feature) into the following directories: Containers-Single JSX functions that are paired with “MapStateToProps” and “mapDispatchToProps” and “Connect” to provide access to the redux store for components; Components-JSX functions that represent pieces of the UI; Actions-JS Functions that enable duplication of the store without explicitly calling a state constructor.
- All React-Redux components are automatically subscribers to changes in the store if you use ‘containers’
- Rich links involve searching a webpage for meta-tags and then rendering their parsed results on your page.
- React.js has it’s own function to convert a string to an HTML tag, so don’t try and use the standard javascript tag creator or try to roll your own.