Flatten function calls

[reubano]

A few functions are nested too deeply, i.e., they are called by other functions which are called by other functions... Fix it! Maybe use one of these:

• https://github.com/gak/pycallgraph
• https://github.com/scottrogowski/code2flow
• https://bitbucket.org/ronaldoussoren/modulegraph
• https://bitbucket.org/blais/snakefood

[amirouche]

Can you give an example?

[reubano]

@amirouche maybe not the best, but process.detect_types <- typetools.guess_type_by_field <- typetools.type_test. I guess the first step in attacking this issue would be to use one of the above tools to identify problematic functions.