The Python π Standard Library is one of the reasons I love π Python.
ππ dealing with your filesystem is super simple.
All you have to do is use the `pathlib` module.
This short thread is a mini `pathlib` cookbook π³, showing some example usages of `pathlib`.
Ready π?
ππ dealing with your filesystem is super simple.
All you have to do is use the `pathlib` module.
This short thread is a mini `pathlib` cookbook π³, showing some example usages of `pathlib`.
Ready π?
π Creating a `Path` object
`Path` objects are the bread and butter of `pathlib`.
Here, I just create a path with no arguments, which defaults to the path `.`
Notice how I used `Path` but I get a `WindowsPath` back.
`pathlib` automatically detects your OS π
`Path` objects are the bread and butter of `pathlib`.
Here, I just create a path with no arguments, which defaults to the path `.`
Notice how I used `Path` but I get a `WindowsPath` back.
`pathlib` automatically detects your OS π
π Getting the parent
The `parent` attribute returns the logical parent of the path you have at hands π
The `parent` attribute returns the logical parent of the path you have at hands π
π Navigating with `/`
The `/` is the operator for division, right?
But, with paths, you can use it to navigate to other paths π
(Use `/` regardless of the OS you are on.)
The `/` is the operator for division, right?
But, with paths, you can use it to navigate to other paths π
(Use `/` regardless of the OS you are on.)
π Resolving a path
Paths have a `.resolve` method that resolves the path.
This resolves any symlinks, and is the only way to βget rid ofβ the `..` in paths π
Paths have a `.resolve` method that resolves the path.
This resolves any symlinks, and is the only way to βget rid ofβ the `..` in paths π
π Going up the filesystem
If you don't want to write a bunch of `.parent` to go up the filesystem, you can also use `/ ".."` and `.resolve`:
If you don't want to write a bunch of `.parent` to go up the filesystem, you can also use `/ ".."` and `.resolve`:
π Check file/directory existence
With the `.exists` method, you can check if the path points to a resource that exists in the filesystem.
This example π should help you figure out what I have on my `C:/tmp` folder.
With the `.exists` method, you can check if the path points to a resource that exists in the filesystem.
This example π should help you figure out what I have on my `C:/tmp` folder.
π Check for valid directories
This is similar to `.exists`, but only returns `True` for directories that exist.
This is similar to `.exists`, but only returns `True` for directories that exist.
π Accessing folder relative to script
Imagine you have this structure:
| - project/
| - data/
| - data1.csv
| - data2.csv
| foo.py
Using `__file__`, you can get to the `data` folder π
This is independent from the current working dir! π₯
Imagine you have this structure:
| - project/
| - data/
| - data1.csv
| - data2.csv
| foo.py
Using `__file__`, you can get to the `data` folder π
This is independent from the current working dir! π₯
That's it for this mini cookbook thread!
If you enjoyed, let me know, and I'll write more about `pathlib` in the near future!
If you want to learn more about Python π, follow @mathsppblog.
You won't be disappointed.
If you enjoyed, let me know, and I'll write more about `pathlib` in the near future!
If you want to learn more about Python π, follow @mathsppblog.
You won't be disappointed.
Here are some cool things we learned π
π Creating a `Path` object
π Navigating with `/`
π Check file/directory existence
π Accessing folder relative to script
See you around π
π Creating a `Path` object
π Navigating with `/`
π Check file/directory existence
π Accessing folder relative to script
See you around π
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![Diagram showing how you can use f-strings and their format specification to redact private or sensitive information, like email addresses. The code from the diagram: def redact_email(email): user, _, domain = email.partition("@") return f"{user[:2]:*<{len(user)}}@{domain}" print(redact_email("rodrigo@mathspp.com")) # ro*****@mathspp.com](https://pbs.twimg.com/media/GqhlkWbXgAAE9kd.jpg)
