How to catch the error in loop of geocode and continue the loop

Question

I am new to python, and as usual, I am running to some trouble. I am trying to store the result of api.geocode(place) to the list location using a loop, but the loop stops when no match for the place is found. Here is a minimal example.

from gmaps import Geocoding
api = Geocoding(api_key = 'API Key')
address = ["Philippines", "Canada", "No place like this, Australia", "Malaysia"]
location = []
for place in address:
    location.append(api.geocode(place))

This throws this error:

Traceback (most recent call last):

  File "<ipython-input-54-8a375b31e18c>", line 2, in <module>
    location.append(api.geocode(place))

  File "/home/quack/anaconda3/lib/python3.6/site-packages/gmaps/geocoding.py", line 37, in geocode
    return self._make_request(self.GEOCODE_URL, parameters, "results")

  File "/home/quack/anaconda3/lib/python3.6/site-packages/gmaps/client.py", line 89, in _make_request
    )(response)

NoResults: {'results': [], 'status': 'ZERO_RESULTS', 'url': 'https://maps.googleapis.com/maps/api/geocode/json?address=No+place+like+this%2C+Australia&sensor=false&key=AIzaSyA-lk2z3VIZuKAq27ooswFPqjIKUDlMC2M'}

I tried to use a try and except solution like the following:

for place in address:
    try:
        location.append(api.geocode(place))
    except:
        pass

This results to a list location of length 3. How would I indicate NoResult in place of the result for No place like this, Australia and continue with the loop?

Dušan Maďar · Accepted Answer · 2018-04-01 12:05:25Z

2

if I understand your question correctly:

from gmaps import Geocoding
api = Geocoding(api_key = 'API Key')
address = ["Philippines", "Canada", "No place like this, Australia", "Malaysia"]
location = []
for place in address:
    try:
        location.append(api.geocode(place))
    except Exception as e:
        location.append("No Result")

but a better approach would be :

from gmaps import Geocoding
api = Geocoding(api_key = 'API Key')
address = ["Philippines", "Canada", "No place like this, Australia", "Malaysia"]
location = {}
for place in address:
    try:
        location[place] = api.geocode(place)
    except Exception as e:
        location[place] = "No Result"

build a dictionary where u can see which places do not exist.

edited Apr 1, 2018 at 12:05

Dušan Maďar

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answered Apr 1, 2018 at 11:58

Rehan Azher

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Comments

Dušan Maďar · Accepted Answer · 2018-04-01 11:59:18Z

1

You can add the raised NoResults exception to your location list.

for place in address:
    try:
        location.append(api.geocode(place))
    except Exception as exc:
        location.append(exc)

answered Apr 1, 2018 at 11:59

Dušan Maďar

10k6 gold badges59 silver badges72 bronze badges

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