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Refactor --format handling to avoid conversion to dict

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This commit is contained in:
JustAnotherArchivist
2020-10-16 00:55:14 +00:00
parent 179112a310
commit 0f78aa45fc
1 changed files with 18 additions and 3 deletions
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21
snscrape/_cli.py
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@@ -1,6 +1,5 @@
import argparse
import contextlib
import dataclasses
import datetime
import inspect
import logging
@@ -156,6 +155,22 @@ def parse_datetime_arg(arg):
raise argparse.ArgumentTypeError(f'Cannot parse {arg!r} into a datetime object')
def parse_format(arg):
# Replace '{' by '{0.' to use properties of the item, but keep '{{' intact
parts = arg.split('{')
out = ''
it = iter(zip(parts, parts[1:]))
for part, nextPart in it:
out += part
if nextPart == '': # Double brace
out += '{{'
next(it)
else: # Single brace
out += '{0.'
out += parts[-1]
return out
def parse_args():
import snscrape.base
import snscrape.modules
@@ -169,7 +184,7 @@ def parse_args():
help = 'When the connection fails or the server returns an unexpected response, retry up to N times with an exponential backoff')
parser.add_argument('-n', '--max-results', dest = 'maxResults', type = lambda x: int(x) if int(x) >= 0 else parser.error('--max-results N must be zero or positive'), metavar = 'N', help = 'Only return the first N results')
group = parser.add_mutually_exclusive_group(required = False)
group.add_argument('-f', '--format', dest = 'format', type = str, default = None, help = 'Output format')
group.add_argument('-f', '--format', dest = 'format', type = parse_format, default = None, help = 'Output format')
group.add_argument('--jsonl', dest = 'jsonl', action = 'store_true', default = False, help = 'Output JSONL')
parser.add_argument('--with-entity', dest = 'withEntity', action = 'store_true', default = False, help = 'Include the entity (e.g. user, channel) as the first output item')
parser.add_argument('--since', type = parse_datetime_arg, metavar = 'DATETIME', help = 'Only return results newer than DATETIME')
@@ -251,7 +266,7 @@ def main():
if args.jsonl:
print(item.json())
elif args.format is not None:
print(args.format.format(**dataclasses.asdict(item)))
print(args.format.format(item))
else:
print(item)
if args.progress and i % 100 == 0: