Using `libsteam_api.so` from Python via `ctypes.CDLL`

steamapi_test.py

#!/usr/bin/env python3

# Hint: use steam_api_interop.cs for function signatures.
# Luckily libsteam_api.so has all of the methods demangled out of the box.

import ctypes

# Specify path to libsteam_api.so here
so = ctypes.CDLL('../sdk/redistributable_bin/linux64/libsteam_api.so')

so.SteamAPI_Init()

so.SteamClient.restype = ctypes.c_void_p
steamclient = so.SteamClient()
print('SteamClient:', steamclient)

so.SteamAPI_ISteamClient_CreateSteamPipe.argtypes = [
    ctypes.c_void_p
]
so.SteamAPI_ISteamClient_CreateSteamPipe.restype = ctypes.c_uint
hsteampipe = so.SteamAPI_ISteamClient_CreateSteamPipe(steamclient)
print('HSteamPipe:', hsteampipe)

so.SteamAPI_ISteamClient_ConnectToGlobalUser.argtypes = [
    ctypes.c_void_p,
    ctypes.c_uint
]
so.SteamAPI_ISteamClient_ConnectToGlobalUser.restype = ctypes.c_uint
hsteamuser = so.SteamAPI_ISteamClient_ConnectToGlobalUser(steamclient, hsteampipe)
print('HSteamUser (global):', hsteamuser)

so.SteamAPI_ISteamClient_GetISteamUser.argtypes = [
    ctypes.c_void_p,
    ctypes.c_uint,
    ctypes.c_uint,
    ctypes.c_char_p
]
so.SteamAPI_ISteamClient_GetISteamUser.restype = ctypes.c_void_p
isteamuser = so.SteamAPI_ISteamClient_GetISteamUser(steamclient, hsteamuser, hsteampipe, b'SteamUser019')
print('ISteamUser:', isteamuser)

so.SteamAPI_ISteamClient_GetISteamFriends.argtypes = [
    ctypes.c_void_p,
    ctypes.c_uint,
    ctypes.c_uint,
    ctypes.c_char_p
]
so.SteamAPI_ISteamClient_GetISteamFriends.restype = ctypes.c_void_p
isteamfriends = so.SteamAPI_ISteamClient_GetISteamFriends(steamclient, hsteamuser, hsteampipe, b'SteamFriends015')
print('ISteamFriends:', isteamfriends)

so.SteamAPI_ISteamUser_GetSteamID.argtypes = [ctypes.c_void_p]
so.SteamAPI_ISteamUser_GetSteamID.restype = ctypes.c_ulong
steamid = so.SteamAPI_ISteamUser_GetSteamID(isteamuser)
print('SteamID:', steamid)

so.SteamAPI_ISteamFriends_GetPersonaName.argtypes = [ctypes.c_void_p]
so.SteamAPI_ISteamFriends_GetPersonaName.restype = ctypes.c_char_p
persona_name = so.SteamAPI_ISteamFriends_GetPersonaName(isteamfriends)
print('Persona name:', persona_name)