Iterate over group names in a regex match?

[Brian D]

Here's a simple named group matching pattern:
('1', '2', '3')

Is it possible to call the group names, so that I can iterate over
them?

The result I'm looking for would be:

('one', 'two', 'three')

 

[Peter Otten]

Here's a simple named group matching pattern:

('1', '2', '3')

Is it possible to call the group names, so that I can iterate over
them?

The result I'm looking for would be:

('one', 'two', 'three')

['__copy__', '__deepcopy__', 'end', 'expand', 'group', 'groupdict',
'groups', 'span', 'start']

m.groupdict().keys() ['one', 'three', 'two']
sorted(m.groupdict(), key=m.span)

['one', 'two', 'three']

Peter

 

[Alf P. Steinbach]

* Brian D:

Here's a simple named group matching pattern:

('1', '2', '3')

Is it possible to call the group names, so that I can iterate over
them?

The result I'm looking for would be:

('one', 'two', 'three')

I never used that beast (I'm in a sense pretty new to Python, although starting
some months back I only investigate what's needed for my writings), but checking
things in the interpreter:

['__copy__', '__deepcopy__', 'end', 'expand', 'group', 'groupdict', 'groups',
'span', 'start']

Cheers & hth.,

- Alf

 

[Brian D]

Here's a simple named group matching pattern:

('1', '2', '3')

Is it possible to call the group names, so that I can iterate over
them?

The result I'm looking for would be:

('one', 'two', 'three')

['__copy__', '__deepcopy__', 'end', 'expand', 'group', 'groupdict',
'groups', 'span', 'start']>>> m.groupdict().keys()

['one', 'three', 'two']>>> sorted(m.groupdict(), key=m.span)

['one', 'two', 'three']

Peter

groupdict() does it. I've never seen it used before. Very cool!

Thank you all for taking time to answer the question.

 

[Brian D]

['__copy__', '__deepcopy__', 'end', 'expand', 'group', 'groupdict',
'groups', 'span', 'start']>>> m.groupdict().keys()

['one', 'three', 'two']>>> sorted(m.groupdict(), key=m.span)

['one', 'two', 'three']

Peter

groupdict() does it. I've never seen it used before. Very cool!

Thank you all for taking time to answer the question.

FYI, here's an example of the working result ...
k, v


('one', '1')
('three', '3')
('two', '2')


The use for this is that I'm pulling data from a flat text file using
regex, and storing values in a dictionary that will be used to update
a database.

 

[MRAB]

Here's a simple named group matching pattern:

('1', '2', '3')

Is it possible to call the group names, so that I can iterate over
them?

The result I'm looking for would be:

('one', 'two', 'three')

The closest you can get is with groupdict():
{'one': '1', 'three': '3', 'two': '2'}