switch_magic

Set of Magic functions for conditional execution of cells in Jupyter notebooks.

Switch magic commands

skip_if

  production = False
  exploration = True

  %%skip_if production
  print(42)
  42

  %%skip_if exploration
  print(42)

skips cell execution if parameter condition is true.

run_if

  production = False
  exploration = True

  %%run_if production
  print(42)

  %%run_if exploration
  print(42)
  42

runs cell only if parameter condition is true.

time_if

  production = False
  exploration = True

  %%time_if production
  print(42)
  42

  %%run_if exploration
  print(42)
  42
  Wall time: 1 ms

time the cell only if parameter condition is true, otherwise simply execute.

Using magic alias

  switch_board = {
      'exploration': False,
      'production': True
  }

  %alias_magic production -p {switch_board['production']} run_if
  Created `%%production` as an alias for `%%run_if True`.

  %alias_magic exploration -p {switch_board['exploration']} run_if
  Created `%%exploration` as an alias for `%%run_if True`.

  %%production
  print(42)
  42

  %%exploration
  print(42)

Installation

Use: pip install switch_magic to install the magic command.

First load the magic in a cell:

%load_ext switch_magic

and then use the function in your cell to dpaste its content.

%%skip_if, %%run_if or %%time_if.

TO DO

• add other conditional functions.