Day 56/100 of #100DaysOfPythonTips ๐
zip(strict=True) is your silent bug killer.
It forces iterables to have the same length instead of quietly truncating data.
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Search
Day 55/100 of #100DaysOfPythonTips ๐
Did you know there are 5 ways to merge dicts in python!
Do you know any other way?
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Day 54/100 of #100DaysOfPythonTips ๐
Python has a weird superpower:
True and False are actually numbers.
Yep โ True == 1 and False == 0.
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Day 53/100 of #100DaysOfPythonTips ๐
Put * in a function signature to force keyword-only arguments.
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Day 52/100 of #100DaysOfPythonTips ๐
dict.setdefault for setting default values for dicts
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Day 51/100 of #100DaysOfPythonTips ๐
Most if / elif chains are a code smell.
If your logic looks like this:
โIf A do this, if B do thatโฆโ
You probably need a dispatch table โ not more ifs.
Use a dictionary that maps keys โ functions.
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Day 50/100 of #100DaysOfPythonTips ๐
Suppress errors like a pro
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Day 49/100 of #100DaysOfPythonTips ๐
If a function is pure, Python can safely cache it and skip recomputation.
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Day 47/100 of #100DaysOfPythonTips ๐
If you are counting things, Counter is your superpower.
collections.Counter gives you:
โข instant counts
โข most common items
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Day 46/100 of #100DaysOfPythonTips ๐
Pythonโs for loop has an else.
The else block runs only if the loop didnโt break.
โIf I never found it, do this.โ
Itโs perfect for search logic โ clean, readable, and almost nobody uses it.๐ง ๐
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Day 45/100 of #100DaysOfPythonTips ๐
Using lists for everything in Python is like using a hammer for every tool.
It worksโฆ until performance matters.
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Day 44/100 of #100DaysOfPythonTips ๐
sum() is one of those tools people think they know, but barely use 30% of its power.
Here are real, practical examples.
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Day 43/100 of #100DaysOfPythonTips ๐
Use sorted with key
Write code that explains itself.
Python gives you the tools โ use them.
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Day 42/100 of #100DaysOfPythonTips ๐
* set is implemented as a hash table โ average O(1) lookup
* list is a dynamic array โ O(n) linear scan
* If you care about existence, use a set.
* If you care about order or duplicates, use a list.
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Day 41/100 of #100DaysOfPythonTips ๐
zip your jacket to keep warm :)
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Day 41/100 of #100DaysOfPythonTips ๐
Sick and tired of KeyError? Say hello to my little friend: defaultdict
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Day 40/100 of #100DaysOfPythonTips ๐
Need index of a list when you loop over?
enumerate to the rescue!
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Day 39/100 of #100DaysOfPythonTips ๐
Most Basic explanation of Python generators.
p.s. : the one you can understand
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Day 38/100 of #100DaysOfPythonTips
๐: Why __name gets mangled to _Class__name
Itโs not for security.
Itโs not real privacy.
Itโs simply to prevent accidental overrides in subclasses.
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