58 lines
1.1 KiB
Markdown
58 lines
1.1 KiB
Markdown
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---
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tags: [python]
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created: Sunday, March 16, 2025
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---
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# Constructing paths in Python
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Rather than hard-coding paths it's better to use path construction operators.
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In the past this was done with `os.path` but a more modern library is `pathlib`.
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```python
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import os
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import pathlib
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from pathlib import Path
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```
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I'll show both, side by side.
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## Get directory of the current script
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```py
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SCRIPT_DIR = Path(__file__).parent.absolute()
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SCRIPT_DIR = os.path.dirname(os.path.abspath(__file))
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```
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## Get the user home directory
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```py
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HOME_DIR = Path.home
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HOME_DIR = os.environ.get("HOME")
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```
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## Construct a path from $HOME
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```py
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HOME_DIR = Path.home
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HOME_DIR = os.environ.get("HOME")
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SUB_DIR = HOME_DIR / "repos" / "systems-obscure" / "src"
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SUB_DIR = os.path.join(HOME_DIR, "repos", "systems-obscure", "src")
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```
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## Access root directories
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It's less straightforward to access directories that are not children of
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`$HOME`.
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For instance to access mounted drives:
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```py
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EXT_HD = Path("/media/samsung-T3")
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EXT_HD_DIR = EXT_HD / "music"
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EXT_HD = "/media/samsung-T3"
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EXT_HD_DIR = os.path.join(EXT_HD, "music")
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```
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