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How To Color Python Logging Output?

If you are new to logging in Python, please feel free to start with our Introduction to Python logging to get started smoothly. Otherwise, here is how to color python logging output: đź”­ Want to cent...

Logging
Python
Questions · Better Stack ·  Updated on October 5, 2023

Change Column Type in Pandas

To change the column type in a pandas DataFrame, you can use the astype() method. Here's how you can do it: import pandas as pd Sample DataFrame data = {'A': [1, 2, 3], 'B': [4.0, 5.0, 6.0]} df = p...

Questions · Better Stack ·  Updated on June 19, 2024

How to Put the Legend outside the Plot

To put the legend outside the plot in Matplotlib, you can use the bbox_to_anchor parameter of the plt.legend() function along with the loc parameter to specify the location outside the plot area. H...

Questions · Better Stack ·  Updated on June 19, 2024

How to Check for Nan Values

In pandas, you can check for NaN (Not a Number) values using the isna() or isnull() methods. These methods return a DataFrame of the same shape as the original DataFrame, where each element is True...

Questions · Better Stack ·  Updated on June 19, 2024

How to Change the Order of Dataframe Columns?

To change the order of DataFrame columns in pandas, you can simply reassign the DataFrame with the desired column order. Here's how you can do it: Suppose you have a DataFrame named df: import pand...

Questions · Better Stack ·  Updated on June 19, 2024

What Is the Python 3 Equivalent of “Python -M Simplehttpserver”

The Python 3 equivalent of python -m SimpleHTTPServer is: python -m http.server In Python 3, the http.server module provides a simple HTTP server that serves files from the current directory and it...

Questions · Better Stack ·  Updated on June 19, 2024

How Do I Install Pip on Macos or OS X?

On macOS or OS X, pip is typically installed alongside Python. If you've installed Python using the official installer from python.org or via Homebrew, pip should already be available. Here's how y...

Questions · Better Stack ·  Updated on June 19, 2024

If/Else in a List Comprehension

You can use if/else statements in a list comprehension to conditionally include elements in the resulting list. The syntax for this is: Here's an example: List comprehension with if/else numbers = ...

Questions · Better Stack ·  Updated on June 19, 2024

How Do I Get the Filename without the Extension from a Path in Python?

You can get the filename without the extension from a path in Python using the os.path module. Here's how you can do it: import os File path file_path = '/path/to/file.txt' Get the filename without...

Questions · Better Stack ·  Updated on June 19, 2024

Why Do Python Classes Inherit Object?

In Python 2.x, it was not necessary to explicitly inherit from the object class when defining a new class. However, in Python 3.x, it is recommended to explicitly inherit from object for several re...

Questions · Better Stack ·  Updated on June 19, 2024

Save Plot to Image File Instead of Displaying It?

To save a plot to an image file instead of displaying it, you can use the savefig() function provided by the matplotlib.pyplot module. Here's how you can do it: import matplotlib.pyplot as plt Gene...

Questions · Better Stack ·  Updated on June 19, 2024

How to Use Relative Imports in Python?

Relative imports in Python are used to import modules relative to the current module's location in the package hierarchy. They are specified using dot notation to indicate the relative position of ...

Questions · Better Stack ·  Updated on June 19, 2024

How to Prettyprint a Json File in Python?

You can pretty print a JSON file in Python using the json module's loads() function to parse the JSON data, and then the json.dumps() function with the indent parameter to output it in a readable f...

Questions · Better Stack ·  Updated on June 19, 2024

How to Create Static Methods in Python?

In Python, a static method is a method that belongs to a class but does not operate on instances of that class. Unlike instance methods, static methods do not have access to the instance (self) or ...

Questions · Better Stack ·  Updated on June 19, 2024

How to Read a File Line-by-Line into a List?

You can read a file line-by-line into a list in Python using a loop to iterate over each line in the file and appending each line to a list. Here's how you can do it: Open the file for reading with...

Questions · Better Stack ·  Updated on June 19, 2024

How to Test a Single File Under Pytest

To run a single test file with pytest, use the command pytest followed by the file path: pytest tests/test_file.py To execute a specific test within that file, append :: and the test name to the fi...

Pytest
Python
Questions · Better Stack ·  Updated on May 15, 2024

How to Assert if an Exception Is Raised With Pytest?

Pytest can be used to test whether a function raises an exception. For instance, consider a division function that raises a ZeroDivisionError if there is an attempt to divide by zero: def divide(x,...

Pytest
Python
Questions · Better Stack ·  Updated on May 15, 2024

How to Use Pytest With Virtualenv?

To effectively use Pytest within a Python virtual environment, follow these instructions: First, create a virtual environment using Python. Assuming you are using the current latest version, (Pytho...

Pytest
Python
Questions · Better Stack ·  Updated on May 15, 2024

How to Skip Directories With Pytest?

You can instruct Pytest to exclude specific directories from testing with the --ignore option. To exclude a single directory, execute: pytest --ignore=somedirectory To exclude multiple directories ...

Pytest
Python
Questions · Better Stack ·  Updated on May 15, 2024

How to Solve the ModuleNotFoundError With Pytest?

To fix the ModuleNotFoundError in pytest, you can start by making your tests directory a Python package.This can be achieved by including an empty __init__.py file to the directory: └── tests/ ...

Pytest
Python
Questions · Better Stack ·  Updated on May 15, 2024

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