# Module [drone.modules.client_core](../../../drone/modules/client_core.py)


Is a client-side module (meant to be run on Python 2.7) containing base Client class, utility functions and basic callbacks declarations. Main focus of the module is client-specific communication without reliance on `clover` Raspberry Pi environment.


## Module functions
## Class [Client](../../../drone/modules/client_core.py#L29)
Client base class provides config loading, communication with server (including automatic reconnection, broadcast listening and binding). You can inherit this class in order to extend functionality for practical applications.



Attributes:

    server_connection (ConnectionManager) - connection to the server.

    connected (bool) - whether the client is connected to the server.

    client_id (string) - ID of the client.

    config (ConfigManager) - contains loaded client configuration.

    config_path (string) -  path to configuration file. There also should be config specification file at 'config_path\config\configspec_client.ini'.
### [\_\_init\_\_](../../../drone/modules/client_core.py#L41)
```py
def __init__(self, config_path='C:\\Users\\artem\\Documents\\GitHub\\COEX-clever-swarm\\clever-show\\drone\\modules\\..\\config\\client.ini')
```
Initializtion

```python

client = Client(config_path)

```



Args:

    config_path (string, optional): Path to the file with configuration.  There also should be config specification file at `<config_path>\config\configspec_client.ini`. Defaults to `<current_dir>\os.pardir\config\client.ini`.
### [broadcast\_bind](../../../drone/modules/client_core.py#L174)
```py
def broadcast_bind(self, timeout=2.0, attempt_limit=3)
```

### [get\_ntp\_time](../../../drone/modules/client_core.py#L85)
```py
def get_ntp_time(ntp_host, ntp_port)
```
Gets and returns time from specified host and port of NTP server.



Args:

    ntp_host (string): hostname or address of the NTP server.

    ntp_port (int): port of the NTP server.



Returns:

    int: Current time recieved from the NTP server
### [load\_config](../../../drone/modules/client_core.py#L66)
```py
def load_config(self)
```
Loads or reloads config from file specified in 'config_path' attribute.
### [on\_broadcast\_bind](../../../drone/modules/client_core.py#L211)
```py
def on_broadcast_bind(self)
```
Method called on binding to the server by broadcast. Override that method in order to add functionality.
### [start](../../../drone/modules/client_core.py#L118)
```py
def start(self)
```
Reloads config and starts infinite loop of connecting to the server and processing said connection. Calling of this method will indefinitely halt execution of any subsequent code.
### [time\_now](../../../drone/modules/client_core.py#L106)
```py
def time_now(self)
```
gets and returns system time or NTP time depending on the config.



Returns:

    int: Current time.