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+--- Thread: json.dumps list output (/thread-25024.html)
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json.dumps list output - qurr - Mar-16-2020
Is it possible in python 3.8 to print list in one line rather than printing each item on new line via json.dumps? Are there any other json libraries that can do it?
RE: json.dumps list output - Larz60+ - Mar-16-2020
json dumps converts to a dictionary.
this dictionary can be better viewed as a formatted text file.
python has a tool that you can use to convert and format JSON data
to a nicely formatted text file.
from command line, Linux format is:
cat myfile.json | python -m json.tool > myfile.txt
RE: json.dumps list output - qurr - Mar-16-2020
(Mar-16-2020, 02:23 AM)Larz60+ Wrote: cat myfile.json | python -m json.tool > myfile.txtBut this is for command line. I need something that will print inner lists of my dict in one line. Like here https://stackoverflow.com/questions/26264742/pretty-print-json-but-keep-inner-arrays-on-one-line-python/54356188 The answers are pretty old there, so maybe there is a new solution?
RE: json.dumps list output - ndc85430 - Mar-16-2020
Out of interest, why?
RE: json.dumps list output - qurr - Mar-16-2020
(Mar-16-2020, 07:52 AM)ndc85430 Wrote: Out of interest, why?Well, um, I just need this format to complete the task. This is what the "customer" wants.
RE: json.dumps list output - perfringo - Mar-16-2020
Ha, nice little printing exercise (one can print into file as well).
Using data from SO example:
>>> j = {'rows_parsed': [['a', 'b', 'c', 'd'], ['e', 'f', 'g', 'i']]}
>>> for k in j:
... print('{')
... print(f'{" " * 4}"{k}": [')
... print(*[f'{" " * 8}{item}' for item in j[k]], sep=',\n')
... print(f'{" " * 4}]')
... print('}')
...
{
"rows_parsed": [
['a', 'b', 'c', 'd'],
['e', 'f', 'g', 'i']
]
}
RE: json.dumps list output - Larz60+ - Mar-16-2020
here's my dictionary display:
def display_dict(dictname, level=0):
indent = " " * (4 * level)
for key, value in dictname.items():
if isinstance(value, dict):
print(f'\n{indent}{key}')
level += 1
self.display_dict(value, level)
else:
print(f'{indent}{key}: {value}')
if level > 0:
level -= 1
RE: json.dumps list output - qurr - Mar-16-2020
It seems that there's no an easy way to achieve one line printing in .json. Thanks for the answers!
RE: json.dumps list output - Larz60+ - Mar-16-2020
Have you looked at the documentation? https://docs.python.org/3/library/json.html
RE: json.dumps list output - qurr - Mar-16-2020
Yes, but I haven't found a way to control inner lists output without writing my own encoder