def __init__(self,
host_or_from_server,
port_or_to_server,
password=None,
namespace="default"):
"""Connect to a pythonshare server
The server is listening to connections at host:port, or it can be
communicated via file-like objects from_server and to_server.
Parameters:
host_or_from_server (string or file-like object)
string: host
file: file for receiving messages from the server
port_or_to_server (int or file-like object)
int: port number
file: file for sending messages to the server
password (string, optional)
server password. The default is None, that is,
do not send password to the server when connecting.
namespace (string, optional)
the default namespace that is used on eval_() and exec_().
The default is "default".
"""
self._ns = namespace
if isinstance(host_or_from_server, str) and isinstance(
port_or_to_server, int):
host = host_or_from_server
port = port_or_to_server
self._s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self._s.connect((host, port))
self._from_server = self._s.makefile("r")
self._to_server = self._s.makefile("w")
elif isinstance(host_or_from_server, file) and isinstance(
port_or_to_server, file):
self._s = None
self._to_server = port_or_to_server
self._from_server = host_or_from_server
else:
raise ValueError(
"invalid host:port (str:int) or to_server:from_server (file:file)"
)
if password:
# authenticate to server
cPickle.dump(password, self._to_server)
self._to_server.flush()
auth_rv = cPickle.load(self._from_server)
try:
auth_ok = auth_rv.success
except AttributeError:
auth_ok = False
if not auth_ok:
raise pythonshare.AuthenticationError("Permission denied")
def __init__(self, host_or_from_server, port_or_to_server, password=None):
"""Connect to pythonshare server
Server is listening to connections at host:port, or it can be
communicated via file-like objects to_server:from_server.
Execute code and evaluate an expression on a namespace on a
remote server with
connection.exec_in(ns, code) and
connection.eval_in(ns, expression).
Results of executed code are kept in the namespace after
connection is closed.
Register code that is executed in a namespace after closing
the connection:
connection.exec_in(ns, 'pythonshare_ns.exec_on_disconnect("code")')
"""
if isinstance(host_or_from_server, str) and isinstance(port_or_to_server, int):
host = host_or_from_server
port = port_or_to_server
self._s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self._s.connect((host, port))
self._from_server = self._s.makefile("r")
self._to_server = self._s.makefile("w")
elif isinstance(host_or_from_server, file) and isinstance(port_or_to_server, file):
self._s = None
self._to_server = port_or_to_server
self._from_server = host_or_from_server
else:
raise ValueError("invalid host:port (str:int) or to_server:from_server (file:file)")
if password:
# authenticate to server
cPickle.dump(password, self._to_server)
self._to_server.flush()
auth_rv = cPickle.load(self._from_server)
try:
auth_ok = auth_rv.success
except AttributeError:
auth_ok = False
if not auth_ok:
raise pythonshare.AuthenticationError("Permission denied")