Matplotlib Custom Colormap: Listed and LinearSegmented
Create custom Matplotlib colormaps with ListedColormap and LinearSegmentedColormap, normalize values, and add a clear colorbar.
Python Blog: Tutorials, Fixes, and Projects
Browse practical Python tutorials, error fixes, library guides, data science examples, and project ideas from Python Pool.
Python -m Flag: Run Modules and Packages from the Command Line
Run a module through Python’s import system, use -m pip and -m venv reliably, and understand how working directories affect resolution.
Remove Brackets From a List in Python: 6 Clean Ways
Remove brackets from a Python list for display with join, map, and formatting while preserving the original list and handling mixed values safely.
NumPy reshape 3D to 2D: Shapes, -1, and Order
Learn NumPy reshape 3D to 2D with shape math, -1 inference, C/F order, flattening, ravel, squeeze, and common ValueError fixes.
NumPy Infinity: np.inf, isinf(), and nan_to_num()
Detect and handle NumPy positive and negative infinity with isinf, isfinite, sign masks, and documented nan_to_num replacements.
Import from a Subdirectory in Python
Learn ways to import Python modules from subdirectories using packages, __init__.py, sys.path changes, and safer project structure choices.
Counting Sort Algorithm in Python
Learn counting sort in Python with counts, cumulative counts, stable sorting, negative numbers, complexity, and practical limits.
NumPy log2(): Base-2 Logarithms, Zeros, and Masks
Use NumPy log2() for scalar and array base-2 logarithms, handle zeros and negatives, use where masks, and change logarithm bases safely.
Nth Root in Python with NumPy: np.power() and np.cbrt()
Calculate NumPy nth roots with np.power and np.cbrt, handle negative inputs, and choose real or complex results deliberately.
Calculate Sum of Squares in Python
Calculate a sum of squares in Python with loops, functions, formulas, NumPy arrays, and residual examples for ranges and input lists.