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15 Python Tips : How to Write Code Effectively

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 Here are some Python tips to keep in mind that will help you write clean, efficient, and bug-free code.     Python Tips for Effective Coding 1. Code Readability and PEP 8  Always aim for clean and readable code by following PEP 8 guidelines.  Use meaningful variable names, avoid excessively long lines (stick to 79 characters), and organize imports properly. 2. Use List Comprehensions List comprehensions are concise and often faster than regular for-loops. Example: squares = [x**2 for x in range(10)] instead of creating an empty list and appending each square value. 3. Take Advantage of Python’s Built-in Libraries  Libraries like itertools, collections, math, and datetime provide powerful functions and data structures that can simplify your code.   For example, collections.Counter can quickly count elements in a list, and itertools.chain can flatten nested lists. 4. Use enumerate Instead of Range     When you need both the index ...
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How to Fix datetime Import Error in Python Quickly

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Here's a quick resolution for import datetime Python error. The reason is your .py python script name and datetime are the same. I'll show you how this error happens and its resolution.


 datetime import error


Here's the Resolution for ImportError


I've created a script called 'datetime.py.' to check whether the minute value is 'odd' or not. During the import of my python script, I got the import error cannot import name datetime.

My Script: datetime.py

My script's intention is to find whether the minute value is odd or not.

Python Logic


from datetime import datetime
odds = [ 1, 3, 5, 7, 9, 11, 13, 15, 17, 19,
21, 23, 25, 27, 29, 31, 33, 35, 37, 39,
41, 43, 45, 47, 49, 51, 53, 55, 57, 59 ]
right_this_minute = datetime.today().minute
if right_this_minute in odds:
print("This minute seems a little odd.")
else:
print("Not an odd minute.")


ImportError


I have imported my datetime.py from Linux. It gives an error "ImportError: cannot import name 'datetime' from partially initialized module'.



ImportError


The reason for the error is the .py module name and Python package name both are the same.


Resolution

I've renamed the .py module and imported it to Python3. Then, the import is successful.

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