Pass String Variable Through As Python Attribute

Question

If I have python...

r = requests.get('https://api.github.com/user', auth=('user', 'pass'))

How can I get it to work with...

myvar = 'get'
r = requests.myvar('https://api.github.com/user', auth=('user', 'pass'))

I.e. parse the string through as a command?

eumiro · Accepted Answer · 2016-01-13 08:52:15Z

4

Use getattr:

myvar = 'get'
getattr(requests, myvar)('https://api.github.com/user', auth=('user', 'pass'))

answered Jan 13, 2016 at 8:52

eumiro

214k36 gold badges307 silver badges264 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

square_eyes Over a year ago

Ah thank you, attribute, not operator! I'll update the question and mark it as correct when I'm allowed.

square_eyes Over a year ago

Would r = self.requests.get('https://api.github.com/user', auth=('user', 'pass')) be getattr(self, requests, myvar)('https://api.github.com/user', auth=('user', 'pass'))?

eumiro Over a year ago

@square_eyes Just replace getattr(self, requests, myvar) with getattr(self.requests, myvar) and the rest is identical.

square_eyes Over a year ago

Thanks again. Very quick and helpful.

Vlad · Accepted Answer · 2016-01-13 08:54:19Z

0

getattr() will work perfectly, but it also means that a user can specify whatever method they choose, possibly ones you don't want to expose. Another approach would be:

{
    "get": requests.get,
    "post": requests.post, # maybe
    # etc
}[myvar]('https://api.github.com/user', auth=('user', 'pass'))

answered Jan 13, 2016 at 8:54

Vlad

18.8k4 gold badges44 silver badges72 bronze badges

Comments

Seungyeop Han · Accepted Answer · 2016-01-13 08:55:58Z

0

You can use getattr, https://docs.python.org/2/library/functions.html#getattr

r = getattr(requests, myvar)('https://api.github.com/user', auth=('user', 'pass'))

answered Jan 13, 2016 at 8:55

Seungyeop Han

1

Comments

KFed · Accepted Answer · 2016-01-13 08:56:51Z

0

OK off the top of my head

myvar = 'get'
getattr(requests, myvar)('https://api.github.com/user', auth=('user', 'pass'))

answered Jan 13, 2016 at 8:56

KFed

841 silver badge6 bronze badges

Collectives™ on Stack Overflow

Pass String Variable Through As Python Attribute

4 Answers 4

4 Comments

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

4 Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related