KeyError: 'data' in python3 - json

Question

I am using graphql in order to show the number of pull requests made by a user. The query works fine when I ran it on the graphql explorer by GitHub. However when I run the script, it shows KeyError and that the expected value is string. Even though the username entered is converted to a string.
Here's the code:
accessToken = "###################################"
headers = {"Authorization": "bearer "+ accessToken }
def getpullRequests(username):
topic_query = """
query {
repositoryOwner(login:""" + str(username) + """) {
login
... on User {
name
avatarUrl
pullRequests(last: 100){
nodes{
id
createdAt
additions
deletions
}
}
}
}
}
"""
request = requests.post('https://api.github.com/graphql', json={'query': topic_query}, headers=headers)
if request.status_code == 200:
result = request.json()
prsdata = {}
for pr in result['data']['repositoryOwner']['pullRequests']['nodes']:
prdata = {}
if re.match(r'^2019-10', pr['createdAt']):
prdata['createdAt'] = pr['createdAt']
prdata['additions'] = pr['additions']
prdata['deletions'] = pr['deletions']
prsdata[pr['id']] = prdata
if prsdata:
print(prsdata)
else:
print("No PRs made in Hacktoberfest")
if __name__ == "__main__":
username = input("Enter the GitHub username: ")
getpullRequests(username)
However on debugging after some tries I found out that the problem is with this line:
for pr in result['data']['repositoryOwner']['pullRequests']['nodes']:
On running the code, the error I face is :
Enter the GitHub username: adiaux
Traceback (most recent call last):
File "script.py", line 47, in <module>
getpullRequests(username)
File "script.py", line 33, in getpullRequests
for pr in result['data']['repositoryOwner']['pullRequests']['nodes']:
KeyError: 'data'
Someone please help :)

Answer 1

I found a solution.
Basically I used the graphQL variables and made the variable into a dict, like this:
variables=dict({
"name":str(username)
})
However accordingly I modified the the query by including:
query ($name:String!){
repositoryOwner(login:$name){
login
... on User {
name
avatarUrl
pullRequests(last: 100){
nodes{
id
createdAt
additions
deletions
}
}
}
}
}
Thanks to whoever tried to solve this :)