tec 0.0.17

Tools to inspect python objects

tec

Tools to inspect python objects

To install: pip install tec

Examples

Counting imported names

modules_imported is a generator of module names from obj. It uses string parsing, so is not as accurate as some other methods, but is fast and flexible, and doesn't require actually running any of the code analyzed.

>>> from tec import modules_imported
>>> import os.path  # single module
>>> list(modules_imported(os.path))  # list of names in the order they were found
['os', 'sys', 'stat', 'genericpath', 'genericpath', 'pwd', 'pwd', 're', 're']
>>> import os  # package with several modules
>>> from collections import Counter
>>> Counter(modules_imported(os, only_base_name=True)).most_common()  #doctest: +ELLIPSIS
[('nt', 5), ('posix', 4), ... ('warnings', 1), ('subprocess', 1)]

Modules

>>> from tec import modules
>>> sorted(modules.second_party_names(modules))[:5]
['DOTPATH', 'FILEPATH', 'FOLDERPATH', 'LOADED', 'ModuleSpecKind']
>>> sorted(modules.second_party_names(modules, callable))[:4]
['ModuleSpecKind', 'coerce_module_spec', 'filepath_to_dotpath', 'finding_objects_of_module_with_given_methods']
>>> sorted(modules.second_party_names(modules, lambda obj: isinstance(obj, type)))
['ModuleSpecKind']

Packages

A few functions to investigate what objects can be imported from a module (and the depth of the dot-path to import those objects directly).

The main function, print_top_level_diagnosis, prints a diagnosis of the imports that can be optained from the (top level) module. That is, those objects that can by imported by doing:

from module import obj

though the object's code may be several package levels down (say module.sub1.sub2.obj).

>> import numpy, pandas, scipy
>> print_top_level_diagnosis(numpy)
--------- numpy ---------
601 objects can be imported from top level numpy:
  20 modules
  300 functions
  104 types

depth	count
0	163
1	406
2	2
3	29
4	1

>> print_top_level_diagnosis(pandas)
--------- pandas ---------
115 objects can be imported from top level pandas:
  12 modules
  55 functions
  40 types

depth	count
0	12
3	37
4	65
5	1

>> print_top_level_diagnosis(scipy)
--------- scipy ---------
582 objects can be imported from top level scipy:
  9 modules
  412 functions
  96 types

depth	count
0	61
1	395
2	4
3	122

Peek

>>> from tec.peek import print_signature
>>> print_signature(print_signature)
func
sep: Union[str, NoneType] = '\\n'
prefix: str = ''
suffix: str = ''
>>> print_signature(print_signature, None)
(func, sep: Union[str, NoneType] = '\\n', prefix: str = '', suffix: str = '')
>>> print_signature(print_signature, '\\n * ', prefix=' * ', suffix='\\n')
 * func
 * sep: Union[str, NoneType] = '\\n'
 * prefix: str = ''
 * suffix: str = ''
<BLANKLINE>