python argparse: How to make arguments dependent on choice of another argument
0
The python program has multiple options such as download data, build model or both. Example:
parser.add_argument('-m', '--mode', required=True, choices=['dload', 'predict', 'both'],
help='dload = download datan '
'predict = build prediction modeln,'
'both = download and predict')
but I want to make sure some of the other arguments are only need to appear when its download. I can easily set required=False but that doesn't look like a good solution.
parser.add_argument('-s', '--start-year-month', required=False,
help="start year to download data, separate year and month by '- ' "
"ex: 2010-01")
parser.add_argument('-e', '--end-year-month', required=False,
help="ending year of data set separate year and month by '- ' "
"ex: 2010-01")
above two arguments should only be required when the choice for -m is dload or both
python argparse
asked Nov 13 at 16:53
Null-Hypothesis
5,5733099171
add a comment |
0
The python program has multiple options such as download data, build model or both. Example:
parser.add_argument('-m', '--mode', required=True, choices=['dload', 'predict', 'both'],
help='dload = download datan '
'predict = build prediction modeln,'
'both = download and predict')
but I want to make sure some of the other arguments are only need to appear when its download. I can easily set required=False but that doesn't look like a good solution.
parser.add_argument('-s', '--start-year-month', required=False,
help="start year to download data, separate year and month by '- ' "
"ex: 2010-01")
parser.add_argument('-e', '--end-year-month', required=False,
help="ending year of data set separate year and month by '- ' "
"ex: 2010-01")
above two arguments should only be required when the choice for -m is dload or both
python argparse
asked Nov 13 at 16:53
Null-Hypothesis
5,5733099171
2
Possible duplicate of Argparse: Required argument 'y' if 'x' is present
– Hampus Larsson
Nov 13 at 16:57
The default foroptionalsisrequired=False. If you specify the right defaults for these arguments, it might not matter whether they are provided or not. You can also test for values after parsing. Theparserdoesn't have to do all the checking.
– hpaulj
Nov 13 at 17:06
Are 's' and 'e' allowed with 'predict'? Just not required? I was thinking of elaborating on the deleted 'sub-commands' answer, but if the only difference is in the 'required' parameter, it may not be worth it. Stick with your own post-parsing testing.
– hpaulj
Nov 14 at 4:52
add a comment |
0
0
0
The python program has multiple options such as download data, build model or both. Example:
parser.add_argument('-m', '--mode', required=True, choices=['dload', 'predict', 'both'],
help='dload = download datan '
'predict = build prediction modeln,'
'both = download and predict')
but I want to make sure some of the other arguments are only need to appear when its download. I can easily set required=False but that doesn't look like a good solution.
parser.add_argument('-s', '--start-year-month', required=False,
help="start year to download data, separate year and month by '- ' "
"ex: 2010-01")
parser.add_argument('-e', '--end-year-month', required=False,
help="ending year of data set separate year and month by '- ' "
"ex: 2010-01")
above two arguments should only be required when the choice for -m is dload or both
python argparse
asked Nov 13 at 16:53
Null-Hypothesis
5,5733099171
The python program has multiple options such as download data, build model or both. Example:
parser.add_argument('-m', '--mode', required=True, choices=['dload', 'predict', 'both'],
help='dload = download datan '
'predict = build prediction modeln,'
'both = download and predict')
but I want to make sure some of the other arguments are only need to appear when its download. I can easily set required=False but that doesn't look like a good solution.
parser.add_argument('-s', '--start-year-month', required=False,
help="start year to download data, separate year and month by '- ' "
"ex: 2010-01")
parser.add_argument('-e', '--end-year-month', required=False,
help="ending year of data set separate year and month by '- ' "
"ex: 2010-01")
above two arguments should only be required when the choice for -m is dload or both
python argparse
python argparse
asked Nov 13 at 16:53
Null-Hypothesis
5,5733099171
asked Nov 13 at 16:53
Null-Hypothesis
5,5733099171
asked Nov 13 at 16:53
Null-Hypothesis
5,5733099171
asked Nov 13 at 16:53
Null-Hypothesis
5,5733099171
asked Nov 13 at 16:53
Null-Hypothesis
5,5733099171
5,5733099171
2
Possible duplicate of Argparse: Required argument 'y' if 'x' is present
– Hampus Larsson
Nov 13 at 16:57
The default foroptionalsisrequired=False. If you specify the right defaults for these arguments, it might not matter whether they are provided or not. You can also test for values after parsing. Theparserdoesn't have to do all the checking.
– hpaulj
Nov 13 at 17:06
Are 's' and 'e' allowed with 'predict'? Just not required? I was thinking of elaborating on the deleted 'sub-commands' answer, but if the only difference is in the 'required' parameter, it may not be worth it. Stick with your own post-parsing testing.
– hpaulj
Nov 14 at 4:52
add a comment |
2
Possible duplicate of Argparse: Required argument 'y' if 'x' is present
– Hampus Larsson
Nov 13 at 16:57
The default foroptionalsisrequired=False. If you specify the right defaults for these arguments, it might not matter whether they are provided or not. You can also test for values after parsing. Theparserdoesn't have to do all the checking.
– hpaulj
Nov 13 at 17:06
Are 's' and 'e' allowed with 'predict'? Just not required? I was thinking of elaborating on the deleted 'sub-commands' answer, but if the only difference is in the 'required' parameter, it may not be worth it. Stick with your own post-parsing testing.
– hpaulj
Nov 14 at 4:52
2
2
Possible duplicate of Argparse: Required argument 'y' if 'x' is present
– Hampus Larsson
Nov 13 at 16:57
Possible duplicate of Argparse: Required argument 'y' if 'x' is present
– Hampus Larsson
Nov 13 at 16:57
The default for
optionals is required=False. If you specify the right defaults for these arguments, it might not matter whether they are provided or not. You can also test for values after parsing. The parser doesn't have to do all the checking.– hpaulj
Nov 13 at 17:06
The default for
optionals is required=False. If you specify the right defaults for these arguments, it might not matter whether they are provided or not. You can also test for values after parsing. The parser doesn't have to do all the checking.– hpaulj
Nov 13 at 17:06
Are 's' and 'e' allowed with 'predict'? Just not required? I was thinking of elaborating on the deleted 'sub-commands' answer, but if the only difference is in the 'required' parameter, it may not be worth it. Stick with your own post-parsing testing.
– hpaulj
Nov 14 at 4:52
Are 's' and 'e' allowed with 'predict'? Just not required? I was thinking of elaborating on the deleted 'sub-commands' answer, but if the only difference is in the 'required' parameter, it may not be worth it. Stick with your own post-parsing testing.
– hpaulj
Nov 14 at 4:52
add a comment |
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2
Possible duplicate of Argparse: Required argument 'y' if 'x' is present
– Hampus Larsson
Nov 13 at 16:57
The default for
optionalsisrequired=False. If you specify the right defaults for these arguments, it might not matter whether they are provided or not. You can also test for values after parsing. Theparserdoesn't have to do all the checking.– hpaulj
Nov 13 at 17:06
Are 's' and 'e' allowed with 'predict'? Just not required? I was thinking of elaborating on the deleted 'sub-commands' answer, but if the only difference is in the 'required' parameter, it may not be worth it. Stick with your own post-parsing testing.
– hpaulj
Nov 14 at 4:52