https://github.com/j6k4m8/fonc
multiline anonymous lambda functions in Python
https://github.com/j6k4m8/fonc
anonymous-functions code-sin lambda-functions mayonnaise-toothpaste python sin
Last synced: about 2 months ago
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multiline anonymous lambda functions in Python
- Host: GitHub
- URL: https://github.com/j6k4m8/fonc
- Owner: j6k4m8
- Created: 2020-09-10T20:03:27.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2022-02-16T19:13:49.000Z (over 3 years ago)
- Last Synced: 2025-02-13T19:46:38.817Z (4 months ago)
- Topics: anonymous-functions, code-sin, lambda-functions, mayonnaise-toothpaste, python, sin
- Language: Python
- Homepage:
- Size: 5.86 KB
- Stars: 0
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# fonc
[](https://pypi.org/project/fonc)
[](https://github.com/j6k4m8/fonc)
multiline inline anonymous functions in python
```shell
pip install fonc
# rejoice
```
---
```python
>>> from fonc import fonc
>>> [
... fonc("""
... def x(input): # doesn't matter what this function is called
... value = input * 3.14
... return int(value)
... """)(value) for value in [1, 2, 3, 4]
... ]
[3, 6, 9, 12]
```
## why would you do this terrible thing
:) :) :) :) :) :) :) :) :) :) :) :)
## does this pollute my global namespace?
nope!
imagine this inline function:
```python
>>> from fonc import fonc
>>> [
... fonc("""
... def x(input): # doesn't matter what this function is called
... value = input * 3.14
... return int(value)
... """)(value) for value in [1, 2, 3, 4]
... ]
[3, 6, 9, 12]
```
One might imagine that this means that the `x` function name is overwritten to the global namespace. It is not!
```py
>>> x(1)
```
```
NameError: name 'x' is not defined
```
## how this works pls?
- parse the string and determine the name of the defined function
- replace that with a known random value
- replace calls to that inline function with calls to the renamed function
## never-asked questions
- Do I have access to global vars inside this function?
ya
- Can I use this in production?
absolutely not u fool