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: 28 days 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 (almost 3 years ago)
• Last Synced: 2024-11-10T09:04:47.217Z (2 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

[![PyPI](https://img.shields.io/pypi/v/fonc?style=for-the-badge)](https://pypi.org/project/fonc)

[![not good](https://img.shields.io/badge/it%20is%20bad-%F0%9F%91%8E-blue?style=for-the-badge)](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