Scope cleaner

An IPython cell magic to remove temporary variables. I wrote this package because I didn't like by global scope to be cluttered with variables I used in 1 cell only during EDA (Exploratory Data Analysis).

Installation

Via pip: pip install scope-cleaner

Usage

Firstly, one needs to import the package: import scope_cleaner. Then a new magic becomes available: %%cleanup_temporary_vars <optional_prefix>. Optional prefix is a parameter which helps to filter out the temporary variables introduced in current cell. If it's not set, the prefix defaults to _.

Example: Consider the following IPython cells:

Cell 2

%%cleanup_temporary_vars tmp

a = 10
b = 15

tmp_1 = 123
tmp_2 = 234

print("tmp", tmp_1, tmp_2)  # Out: tmp 123 234
tmp_1 + tmp_2  # Out: 357

So all the variables from current cell work correctly.

Cell 3

a + b  # Out: 25
tmp_1  # Error: no such variable

As we can see, the temporary variable was automatically deleted by %%cleanup_temporary_vars in the end of previous cell (because its name starts with tmp).