fix(#6921): Wrong variable name for python initialized client.

- Fix variable name in InitializeClient to agree with write and query examples.
- Reported in Docs-v2

src/homepageExperience/components/steps/python/InitializeClient.tsx

@@ -25,7 +25,7 @@ token = os.environ.get("INFLUXDB_TOKEN")
 org = "${org.name}"
 url = "${url}"
 
-write_client = influxdb_client.InfluxDBClient(url=url, token=token, org=org)
+client = influxdb_client.InfluxDBClient(url=url, token=token, org=org)
 `
 
   return (