pq

PQ is a jq-like viewer/processing tool for pickle files.

howto

# pq '' file.pkl
{'other': 456, 'test': 123}
# pq '' file.pkl -f table
|other|test|
| 456 |123 |
# pq 'keys' file.pkl
['test', 'other']
# pq '.["test"]' file.pkl
123
# pq 'eval({"value": i["other"] + i["test"]})' file.pkl -f table
|value|
|=====|
| 579 |

Implemented filters

Filter	Usage	Description
flat	.[]	Extract elements from list to apply filters on each
keys	keys	Extract keys from dictionary or list(range(len(list))) on a list
accessor	.ATTRIBUTE or .[INDEX]	Read attribute from object or index on a list/dictionary
sort	sort(FILTEREXPR)	Order elements by result of filter expression (accessor, eval)
eval	eval(EVALEXPR)	Apply EVALEXPR on items of list. EVALEXPR is a python expression with i as parameter (example: i["separation"], {"firstname": i["name"].split()[0], "lastname": i["name"].split()[1]})

Formatting filters

Type	Description
pretty	DEFAULT, pretty prints python structure (pprint module)
table	prints list of dictionaries as a table (only common keys)