In <a href="https://python.org">Python</a> you can easily substitute a <a href="https://pythonbasics.org/strings/">string</a> without having to do character by character replacement (looking at you <a href="https://stackoverflow.com/questions/779875/what-is-the-function-to-replace-string-in-c">C programming</a>).In fact, Python has a method named .replace() which is part of the <a href="https://pythonbasics.org/strings/">string</a>.The syntax for the replace method is:

Errors can happen if a <a href="https://python.org">Python</a> program is running. There are many types of errors, like a "couldn't open file error" or "zero division error".If an error pops up, that doesn't mean your program should crash.So how do you stop it from crashing?

In this article we introduce Python's loop, the program in general are executed sequentially. Sequentially means in sequential order (top down):do Ado B

This post will discuss the <a href="https://python.org">Python</a> <a href="https://pythonbasics.org/enumerate/">enumerate</a> function quickly. Python is known to make code readable and using enumerate will make your code more readable.Loops let you repeat lines of code, the most common being for loops and while loop. If you have previous experience with <a href="https://pythonprogramminglanguage.com/for-loops/">for loops</a>, you may be inclined to use an index (i) on the array.array =

In <a href="https://python.org">Python</a> you can aggregate <a href="https://pythonbasics.org/iterable/">iteratables</a> (<a href="https://pythonbasics.org/list/">lists</a>, <a href="https://pythonspot.com/python-tuples/">tuples</a>). You can do that with the zip() function, which has nothing to do with the package format zip.Before playing with the zip function, you should know the <a href="https://pythonbasics.org">basics of Python</a>.The zip() function takes iterables, aggregates them i

<a href="https://python.org">Python</a> Applications may call custom exceptions by creating a brand new exception class. Custom Exceptions need to be derived from the Exception class.An exception can be thrown with the raise keyword. They can be handled with the <a href="https://pythonprogramminglanguage.com/try-except/">try-catch</a> block.You can try this in the Python shell, by typing raise Exception("your message").

<a href="https://pandas.pydata.org/">Pandas</a> is a data analysis module for Python. The module was first developed in 2008 and has become one of the most popular data analysis modules.You can read all kinds of data into Python with pandas.This includes <a href="https://pythonprogramminglanguage.com/read-csv/">reading csv data</a> (data from txt), read from a <a href="https://pythonbasics.org/pickle/">pickle</a> object file or even the clipboard.

Do you want to make beautiful charts with <a href="https://python.org">Python</a>? You can with matplotlib or seaborn.<a href="https://matplotlib.org/">Matplotlib</a> is a plotting library for the Python programming language. It lets you create charts like a <a href="https://pythonbasics.org/matplotlib-bar-chart/">bar chart</a>, <a href="https://pythonbasics.org/matplotlib-line-chart/">line chart</a> and many other basic charts.<a href="https://seaborn.pydata.org/">Seaborn</a> is a Python da

In this post I'll talk about some popular Python packages. These packages are used for a variety of purposes. You can install modules (packages) with the Python package manager pip.For making a desktop applications (GUI graphical interface), you can use one of these packages. You can make any desktop software you want, including all the widgets (buttons, listbox, textbox etc)|Module|Description|

Are you new to <a href="https://python.org">Python</a>? Did you program in other languages before?You may think the way to get the index is by creating a loop, getting the size of the array, creating an index variable, comparing the index variable to the condition and increasing it manually.. phew!In the C programming language you get something like this:

You can use exponents in <a href="https://python.org">Python</a>, without using any modules. Let's see an example. To raise 3 squared, would look like this:3**29

In <a href="https://python.org">Python</a> you can generate random numbers with the random module. To load this module use the lineimport randomTo generate 10 numbers between 1 and 10 you can use:

A csv file is a file in which data is separated by a delimiter (often a comma). Many office programs can store data in a csv format (<a href="https://sites.google.com/a/temple.edu/googleapps1/tip-of-the-day/april28-exportagooglespreadsheetintovariousformats">Google Sheet</a>, <a href="https://answers.microsoft.com/en-us/msoffice/forum/all/how-to-save-excel-file-in-csv-with-comma-delimited/7ee047dc-8f37-42d4-9be9-954fcf5de2da">Microsoft Excel</a> etc).The file format is just that simple: a bunc

<a href="https://python.org">Python</a> supports file like objects, that don't write to the disk but stay in the memory.You can create file like objects with <a href="https://docs.python.org/2/library/stringio.html">StringIO</a>. From Python version > 3 this is part of the <a href="https://docs.python.org/3/library/io.html">io module</a>.These files live only inside the computer memory, not on the disk. Python can <a href="https://pythonbasics.org/read-file/">read files</a> from the disk, bu

If you have a Python text string, and want trailing spaces removed you can do that with the method .strip(), .lstrip() and .rstrip().That removes the spaces before and after the string.You can use strip, lstrip, rstrip methods. Like the name suggests, lstrip strips left of the string, rstrip strips right of the string and strip just strips the string of spaces.

The Python <a href="https://palletsprojects.com/p/flask/">Flask</a> module is great for building a Rest API. A Rest API uses the <a href="https://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol">HTTP</a> protocol as it was originally designed.The HTTP protocol has many requests like GET, PUT, POST, and DELETE requests. These requests should be used for mutation, creation, and deletion respectively.This is great for making your web app backend. Because it decouples your backend (logic)

<a href="https://python.org">Python</a> can be used for web development, Flask is a Python web framework based on WSGI. Flask lets you build web apps with Python (<a href="https://pythonbasics.org/what-is-flask-python/">what is Flask</a>).You can use Flask to build single page apps, a blog, web apps and many more things. Some people use it to build a user interface on their <a href="https://raspberrypi.org/">Raspberry Pi</a>.Before playing with Flask, you should <a href="https://pythonbasics

You can build web applications in the <a href="https://python.org">Python</a> programming language with the <a href="https://palletsprojects.com/p/flask/">Flask framework</a> (<a href="https://pythonbasics.org/what-is-flask-python/">what is Flask</a>).When creating the user interface, you want to use variables from your Python code. You can do that with a template engine. Templates are what the end user see in their web browser.That means that in Python code you have some output (variables),

In <a href="https://python.org">Python</a>, a dictionary is a key-value mapping. Every value is mapped to one key. A dictionary can have zero or more elements.The dictionary below has 3 pairs, each pair has one value. 'a' is mapped to 1, 'b' is mapped to 2, 'c' is mapped to 3.d = {'a': 1, 'b': 2, 'c': 3}

In <a href="https://python.org">Python</a> you can use formatted strings to output variables easily.Formatted string literals (f-strings) let you include variables inside a string by prefixing the string with f or F and writing expressions as {expression}.If you have an f-string, you can use the :10 to make sure it's 10 character wide. This let you create a nice table like this: