camelCase

camelCase Source: en.wikipedia.org/wiki/Camel_case

In some languages, it’s common to use camel case (otherwise known as “mixed case”) for variables’ names when those names comprise multiple words, whereby the first letter of the first word is lowercase but the first letter of each subsequent word is uppercase. For instance, whereas a variable for a user’s name might be called name, a variable for a user’s first name might be called firstName, and a variable for a user’s preferred first name (e.g., nickname) might be called preferredFirstName.

Python, by contrast, recommends snake case, whereby words are instead separated by underscores (_), with all letters in lowercase. For instance, those same variables would be called name, first_name, and preferred_first_name, respectively, in Python.

In a file called camel.py, implement a program that prompts the user for the name of a variable in camel case and outputs the corresponding name in snake case. Assume that the user’s input will indeed be in camel case.

Hints

Recall that a str comes with quite a few methods, per docs.python.org/3/library/stdtypes.html#string-methods.
Much like a list, a str is “iterable,” which means you can iterate over each of its characters in a loop. For instance, if s is a str, you could print each of its characters, one at a time, with code like:
```
    for c in s:
        print(c, end="")
```

Before You Begin

From the root of your repository execute cd src/2-Loops So your current working directory is ...

/src/2-Loops $:

Next execute

code camel.py

to make a file called camel.py where you’ll write your program.

Success

Your program must have a function called camel_to_snake that takes a string as input and returns a new string with all of its camelCase words converted to snake_case. Your main function must call this function with a user input string and print the result.

How to Test

Here’s how to test your code manually:

Run your program with python camel.py. Type name and press Enter. Your program should output:
```
name
```
Run your program with python camel.py. Type firstName and press Enter. Your program should output:
```
first_name
```
Run your program with python camel.py. Type preferredFirstName and press Enter. Your program should output
```
preferred_first_name
```

Pytest

You can execute the below to check your code using pytest from the root directory.

pytest .\tests\loops\test_camel.py

A green output from running the test means it was successful. A red output means there is a bug in your code that you need to fix.

How to Submit

From github desktop or the command line, commit your changes and push them to your repository.

Codespaces

If you are using codespaces, you can commit your changes directly from the Codespace interface. Click on the Source Control icon in the left sidebar, then click on the "..." button and select "Commit to main". Enter a commit message and click "Commit".

Codespace terminal or your local terminal.

Note

You will need to have installed git-scm for this to work locally

At the /datatypes $ prompt in your terminal:

git add -A

Add all changed files in the repository to be committed

git commit -m "your message here"

Commit all changes in the REPO with the comment “your message here“ note: If the file is not complete, adjust the comment to describes what is being committed

Note

Remember to replace "your message here" with a meaningful commit message that describes your changes.

git push

Push all changes to the repo.