My json file data.json looks like this

[
{"host" : "192.168.0.25", "username":"server2", "path":"/home/server/.ssh/01_id"},
{"host" : "192.168.0.26", "username":"server3", "path":"/home/server/.ssh/01_id"}
]

I want the loop happen in this way only (lets ignore the remote variable)

for remotes,host,username in zip(remote , data["host"] ,data["username"]):

This is the error i am getting

    for remotes,host,username in list(zip(remote , data["host"] ,data["username"])):
TypeError: list indices must be integers or slices, not str

You need to iterate the data to extract the host and username values so that you can zip them to the remote list:

data = [{"host" : "192.168.0.25", "username":"server2", "path":"/home/server/.ssh/01_id"},{"host" : "192.168.0.26", "username":"server3", "path":"/home/server/.ssh/01_id"}
]
hosts_users = [(d['host'], d['username']) for d in data]
remote = [1, 2]for remote, (host, username) in zip(remote, hosts_users):print(remote, host, username)

Output:

1 192.168.0.25 server2
2 192.168.0.26 server3