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Mike Driscoll

@driscollis

Dec 5

Let's talk about #Python introspection!

Introspection is the examination of Python objects. It gives you a window into your code that lets you learn about Python using Python itself!

Find out how in this mini-thread!

🧵👇🐍

There are multiple ways to introspect #Python code. You will learn about the following tools you can use for introspection:

🐍 type()
🐍 dir()
🐍 help()
🐍 sys

You can use the `type()` function in #Python to learn about any object's type.

This can help you figure out what is going on in your code when you are debugging.

Here are some examples:

Read 8 tweets

Mike Driscoll

@driscollis

Nov 29

Today I am going to show you how to create 7️⃣ different file types with #Python:

🐍 Text file
🐍 CSV
🐍 XML
🐍 JSON
🐍 Tar file
🐍 PDF
🐍 Excel

Join me for this fun 🧵👇

1️⃣ Creating a text file with #Python is a breeze! The recommended method is to use Python's `with` statement as it will automatically close the file for you

That means you can create a text file with TWO lines of code if you want to:

2️⃣ Creating a CSV file with #Python can be accomplished using the `csv` module

Here's a small example:

Read 16 tweets

Mike Driscoll

@driscollis

Nov 28

Let's talk about creating dictionaries with #Python 🐍

A dictionary is a key / value pair. The key must be of an immutable type, such as an integer or a string. The value can be of any type

🧵👇

You can create a #Python dictionary in several different ways.

The following shows the most common method of dictionary creation followed by using a dictionary comprehension

You can also create a #Python dictionary by using the `dict()` function

Read 4 tweets

Mike Driscoll

@driscollis

Nov 27

#Python has several Easter eggs built in! 🐍🥚🐣🐇

An Easter egg is a fun little surprise in a programming language, video game or movie.

Let's talk about some of Python's cool Easter eggs!

🧵🐍👇

🥚1️⃣ - The most famous #Python Easter egg is probably The Zen of Python, which you will see if you "import this"

🥚2️⃣ - What you might not know is that Zen of Python's source is really interesting too:

github.com/python/cpython…

Read 10 tweets

Mike Driscoll

@driscollis

Nov 27

Another great tool in #Python's `collections` module is the `defaultdict`! 🐍🔥

`defaultdict` is a subclass of the built-in dict class where the first argument is a factory attribute.

🧵🐍👇

Let's start out by creating a regular dictionary so you can see how `defaultdict` might help clean up your code.

Here you create a dictionary based on words in a string using a conditional statement to add the various words.

You can also see the output in the 2nd screenshot

Now if you use a `defaultdict` with an `int` factory, you can get rid of the conditional statement entirely, which makes your code shorter and easier to read! 🐍🔥

Read 8 tweets

Mike Driscoll

@driscollis

Nov 24

Now if you use a `defaultdict` with an `int` factory, you can get rid of the conditional statement entirely, which makes your code shorter and easier to read! 🐍🔥

Read 8 tweets

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