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Master Python: How-To Tutorials & Solutions for Coders

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  • Python

    What are the max and min values of integer in Python?

    December 23, 2021

    Learn Python integer limits using sys.maxsize for 64-bit systems, and understand why Python integers are arbitrary precision.

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  • Python

    How to Calculate Exponential Value in Python (Using ** Operator, pow(), math.pow(), and math.exp())

    December 21, 2021

    Let’s learn how to calculate exponential value in Python using the exponentiation operator **, the built‑in pow() function, and math module helpers like math.pow() and math.exp(). This knowledge can be valuable in various scientific, engineering, and mathematical applications.

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  • Python

    How to run a Python script in Linux

    December 20, 2021

    Running Python scripts on Linux is a fundamental skill. This guide covers methods from simple command-line invocation to advanced scheduling and service management, ensuring your Python code runs reliably and automatically.

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  • numpy - Python

    How to convert array to binary?

    May 4, 2021

    Learn how to save and load NumPy arrays as binary files using tofile(), savez(), and save() methods.

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  • numpy - Python

    How to Reverse Array in NumPy (np.flip, np.flipud, np.fliplr, and Slicing Examples)

    March 19, 2021

    Let’s learn how to reverse array in NumPy using np.flip() for all axes, np.flipud() for vertical reversal, np.fliplr() for horizontal reversal, and slicing tricks.

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  • numpy - Python

    How to Convert NumPy Array to Python List (Using .tolist() and list() Methods)

    March 19, 2021

    Let’s see how to convert NumPy array to Python list using the preferred ndarray.tolist() method or the built-in list() constructor for seamless type conversion.

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  • Python

    How to Convert a List of Characters to a String in Python (With and Without join)

    February 8, 2021

    Let’s see how to convert char to string in Python. Asume given char list is : Char : ['m', 'y', 'c', 'h', 'a', 'r'] And we would like to convert it to: String : mychar There are a few ways to do that:

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  • Python

    How to Draw Pyramid Patterns in Python (Numbers, Symbols, Letters and Hollow Pyramids)

    January 14, 2021

    Let’s embark on an exciting journey to learn how to draw different Python pyramid patterns, including numeric, hashed, hollow, inverted and letter pyramids.

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  • Python

    How to convert cm to inch?

    January 11, 2021

    Let’s see how to handle unit conversion in Python. I’m taking cm to inch conversion as an example.

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  • Python

    How to Calculate the Frequency and Percentage of a Given Letter in a Text File Using Python

    December 21, 2020

    You will learn how to calculate the frequency and percentage of a given letter in a text file using Python, working with strings loaded from an external file.

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  • Python

    How to Calculate Age from Date of Birth in Python Using Datetime (Years, Months, Days)

    December 16, 2020

    This tutorial shows how to calculate age from date of birth in Python using the datetime module, returning your exact age in years, months, and days. The script will ask for the day, month, and year of your birth, and it will output your exact age. With a few simple changes, this Python age calculator from date of birth can be adapted for other datetime calculations, such as finding the time until your next birthday or since a specific event.

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