Friends, have you watched a bunch of Python tutorials but still can’t write code? Don’t worry, today I will share some practical tips that those tutorials didn’t cover.
1. Understand this first: How does Python actually run code?
Many beginners don’t even know how to execute a .py file. Try this:
Execution method:
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Open the terminal
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Type
<span>python test.py</span> -
Did you see the result?
2. Variable naming matters
Stop using names like x and y! Check out these good examples:
Remember: Variable names should be easily understandable at a glance.
3. List operations should be done this way
Data handling is Python’s strong suit:
Tip: Use<span>len(fruits)</span> to get the length of the list.
4. Dictionaries are super useful
Using dictionaries to store data is very convenient:
Note: Keys must be enclosed in quotes.
5. Functions are not just for show
Packaging code into functions is super useful:
Advice: A function should only do one thing.
6. File operations are very simple
Reading and writing files is an essential skill:
Key point: Use<span>with</span> to automatically close files.
7. Exception handling is very important
It’s normal for programs to have errors, but you need to know how to handle them:
Experience: Anticipate where errors might occur.
Don’t just watch, try it out now:
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Write a small calculator program
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Create a contact management system
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Track daily expenses
Remember: Programming is like riding a bicycle; you can’t learn it just by watching tutorials!