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Stream Notes - Wednesday - October 09, 2019

🐍💻 Learning Python from Scratch 014 - Working with Files and Libraries

Stream Replay

Goals

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VS Code Extensions Shown/Used

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Segments

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Timestamp Topic
00:07:28 Kick it off
00:12:11 Recap from last episode
00:18:36 Learning how to clone from the git repository we set up last episode
00:22:22 A zip file is a compressed format of files and folders
00:31:35 What indentation errors indicate
00:34:28 How to show whitespace in vs code
00:37:00 We can’t catch exceptions that are system exit type errors
00:39:40 Reminder of what gitignore does
00:41:28 Setting up the virtual environment after cloning the git repository
00:49:52 Via @svmihar: check out pipenv in a future episode
00:58:59 Use ‘pip freeze’ to save the libraries we depend upon in our projects
00:59:45 What the ‘>’ symbol does in the terminal
01:03:49 Via @ShephiZaragoza: as a note, > will add, » wil overwrite the file
01:05:19 Via @phrakberg: » Appends, > overwrites
01:10:53 Start break
01:17:54 Back from break and start stretch
01:21:19 Start learning about working with files in python
01:22:46 The open() function is used to open files on which the system our program is running
01:24:42 Always use close() function when we’re done with a file
01:26:20 We can use context managers to safely open files without worrying about using close()
01:33:08 What is JSON? JavaScript Object Notation
01:38:54 Writing code to open a cities.json file
01:41:12 When opening a file we need to keep in mind where exactly that file is on the system in order to properly access it
01:55:32 Via @joaostriker: you use forward slahes to find a path in windows , or, you do full path with with backslash instead
02:23:05 Working with libraries
02:40:10 Close and recap

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