Hi, That's called string interpolation. Check here: https://stackoverflow.com/questions/11788472/does-python-has-a-similar-variable-interpolation-like-string-var-in-ruby
Not the best explanation, but should get you going. Regards, Andréas 2018-01-17 7:27 GMT+01:00 <[email protected]>: > May i know what does this means: > > def query_pokeapi(resource_url): > url = '{0}{1}'.format(BASE_URL, resource_url) > response = requests.get(url) > > > the '{0}{1}' and resource_url > > > On Wednesday, January 17, 2018 at 3:02:06 PM UTC+9, Matemática A3K wrote: >> >> >> >> On Wed, Jan 17, 2018 at 1:42 AM, <[email protected]> wrote: >> >>> As this is the first time I'm trying this out, I do not know what is >>> wrong with the problem. So it would be great if someone can help me solve >>> this problem >>> >>> >>> The code I'm using is at the bottom page of this website: >>> https://www.twilio.com/blog/2014/11/build-your-own- >>> pokedex-with-django-mms-and-pokeapi.html >>> >>> Where it give example on how you can make HTTP request function and >>> retrieve database on your query. >>> >>> >>> The code on the website is this. >>> >>> *query.py* >>> >>> import requestsimport json >>> >>> BASE_URL = 'http://pokeapi.co' >>> >>> def query_pokeapi(resource_url): >>> url = '{0}{1}'.format(BASE_URL, resource_url) >>> response = requests.get(url) >>> >>> if response.status_code == 200: >>> return json.loads(response.text) >>> return None >>> >>> If there is not a 200 response it returns None >> >>> >>> >>> >>> charizard = query_pokeapi('/api/v1/pokemon/charizard/') >>> >>> >> It's because charizard is None >> >>> >>> sprite_uri = charizard['sprites'][0]['resource_uri'] >>> >>> that can't do None['sprites']... >> >>> >>> description_uri = charizard['descriptions'][0]['resource_uri'] >>> >>> sprite = query_pokeapi(sprite_uri) >>> description = query_pokeapi(description_uri) >>> print >>> charizard['name']print >>> description['description']print >>> BASE_URL + sprite['image'] >>> >>> >>> In my edit, I only change these print line at the bottom of this >>> >>> *query.py* >>> >>> print(charizard['name'])print(description['description'])print(BASE_URL + >>> sprite['image']) >>> >>> >>> But i got this error instead >>> >>> Traceback (most recent call last): File "query2.py", line 46, in >>> sprite_uri = charizard['sprites'][0]['resource_uri'] TypeError: >>> 'NoneType' object is not subscriptable >>> >>> And that's why the error >> >> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Django users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at https://groups.google.com/group/django-users. >>> To view this discussion on the web visit https://groups.google.com/d/ms >>> gid/django-users/af20ad33-1843-4fff-93fb-8681f7d5b88e%40googlegroups.com >>> <https://groups.google.com/d/msgid/django-users/af20ad33-1843-4fff-93fb-8681f7d5b88e%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/django-users. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/django-users/40d656ab-675b-4f8d-b163-c155054d037f%40googlegroups.com > <https://groups.google.com/d/msgid/django-users/40d656ab-675b-4f8d-b163-c155054d037f%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAK4qSCe-daQ1pkEMEhGuYYeuBwk%2BdhSoFG4s6Jcp-zMp-bfYmw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
