Document reserved characters in argument names about graphene HOT 3 CLOSED

Hi @ustun,

I've fixed the name argument in Fields with this commit: 2eea03c

So the first code you wrote would work perfectly.

About the last code you wrote:

import graphene


class Query(graphene.ObjectType):
    hello = graphene.String(first_name=graphene.String())

    def resolve_hello(self, args, info):
        return 'Hello ' + args.get('first_name')

schema = graphene.Schema(query=Query)

result = schema.execute("""
query foo($first_name:String)
{
        hello(first_name:$first_name)
}
""", args={"first_name": "Serkan"})

print result.data

Graphene, converts (by default, could be disabled) not only the field names in ObjectTypes/Interfaces, but also the argument names to be camelCase when you query it.
So if you use an argument for having a first_name name, you should query in the GraphQL query using: firstName.
Like:

result = schema.execute("""
query foo($firstName:String)
{
        hello(firstName:$firstName)
}
""", args={"firstName": "Serkan"})

About the from error, it's a Python syntax error, so Graphene will not show any errors for that, as it will not be executed.

Hope it helps!

from graphene.

Also, possibly related, underscores in field names do not work:

import graphene


class Query(graphene.ObjectType):
    hello = graphene.String(first_name=graphene.String())

    def resolve_hello(self, args, info):
        return 'Hello ' + args.get('first_name')

schema = graphene.Schema(query=Query)

result = schema.execute("""
query foo($first_name:String)
{
        hello(first_name:$first_name)
}
""", args={"first_name": "Serkan"})

print result.data

from graphene.

Incidentally, from argument name was the first thing I tried on the playground since it accepts an argument named to and it took me some time to remember that from is a keyword. Maybe the error message could be made better there too.

http://graphene-python.org/playground/?schema=import%2520graphene%250A%250Aclass%2520Query(graphene.ObjectType)%253A%250A%2520%2520%2520%2520hello%2520%253D%2520graphene.String()%250A%2520%2520%2520%2520ping%2520%253D%2520graphene.String(to%253Dgraphene.String()%252C%2520from%253Dgraphene.String())%250A%250A%2520%2520%2520%2520def%2520resolve_hello(self%252C%2520args%252C%2520info)%253A%250A%2520%2520%2520%2520%2520%2520%2520%2520return%2520%27World%27%250A%250A%2520%2520%2520%2520def%2520resolve_ping(self%252C%2520args%252C%2520info)%253A%250A%2520%2520%2520%2520%2520%2520%2520%2520return%2520%27Pinging%2520%257B%257D%2520%257B%257D%27.format(args.get(%27to%27)%252C%2520args.get(%27from%27))%250A%250Aschema%2520%253D%2520graphene.Schema(query%253DQuery)%250A&query=query%2520%257B%250A%2520%2520hello%250A%2520%2520ping(to%253A%2522Peter%2522%252C%2520FROM%253A%2520%2522Ustun%2522)%250A%257D%250A

from graphene.