# no_global_nonlocal_vars
Function decorator that ensures that no global and no nonlocal variables are used, making Jupyter notebooks much safer
# Installing
Install:
```
pip install no_global_nonlocal_vars
```
# Usage
```
# Correct Output
@no_global_nonlocal_vars
def test_no_global_nonlocal_vars_GOOD(x, repeat):
return np.array([x] * repeat)
# Error from typo
@no_global_nonlocal_vars
def test_no_global_nonlocal_vars_typo_GOOD(x_typo, repeat_typo):
return np.array([x] * repeat)
# Nested function works
@no_global_nonlocal_vars
def test_no_global_nonlocal_vars_nested_GOOD(x, repeat=10):
@no_global_nonlocal_vars
def helper(x, repeat):
return np.array([x] * repeat)
return helper(x, repeat)
# Error from nonlocal variable typo
@no_global_nonlocal_vars
def test_no_global_nonlocal_vars_nested_typo_GOOD(x, repeat=10):
@no_global_nonlocal_vars
def helper(x_typo, repeat_typo):
return np.array([x] * repeat)
return helper(x, repeat)
```
# Notes
* The errors show up only upon first time running the function, not at function definition time
# Related Work
* https://github.com/tillahoffmann/localscope
* https://github.com/diazona/localscope
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