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api handle for baidu map

Project description

Baidu Map Api

Description

This module is an python sdk for baidu map. You are only required to write a few code to get an execllent effect. Also, this module may work on another map api after some modification

Author: cpak00@github

Email: cymcpak00@gmail.com

Get Start

pip install baidumap

install with pip, requestes required only.

test.py

from baidumap import config
from baidumap.api.handle import get_handle
from baidumap.object import BaiduMapObject

import logging

# get raw handler
ak_key = 'ZAMW5**********************'
raw_handler = get_handle(ak_key)

# get logger
FORMAT = "%(asctime)s %(thread)d %(message)s"
logging.basicConfig(format=FORMAT, datefmt="[%Y-%m-%d %H:%M:%S]")
logger = logging.getLogger()
logger.setLevel(logging.DEBUG)

if __name__ == '__main__':
    # log config(no necessary)
    config.mode = config.value.DEBUG
    config.logger = logger

    # Agent Mode
    print('---\nAgent Mode:\n')
    raw_handler = get_handle(ak_key)
    thu_main = BaiduMapObject(address='北京市清华大学紫荆园餐厅')
    thu_main.from_address(raw_handler)
    print('from address find location: %s' %
          thu_main.get_property('location')['location'])
    print('from address find location: %s' % thu_main.get_properties(
        ['lat', 'lng'], p_defaults={'lat': '-1',
                                    'lng': '-1'}))
    thu_main.from_location(raw_handler)
    print('\nfrom location find uid: %s' % thu_main.get_property('uid'))
    print('and its name: %s' % thu_main.get_property('name'))

    find_location = thu_main.get_properties(
        ['uid', 'name'], p_defaults={'uid': '',
                                     'name': ''})
    print('--\nfrom location find uid and name: %s' % find_location)

    for index in find_location:
        thu_main.from_json(find_location[index])
        thu_main.from_uid(raw_handler, detail=True)
        print('-\nfrom uid find info:\n%s' % thu_main)

    # Factory Mode
    print('---\nFactory Mode:\n')
    iplocer = get_handle(ak_key, 'location/ip')
    iplocer.set_params()
    print(
        iplocer.run(collect_keys=['address', 'content']).get_property(
            'address')['address'])

    print('---\n')
    placeser = get_handle(
        ak_key,
        'place/v2/search',
        is_list=True,
        query='ATM机',
        tag='银行',
        region='北京', )
    print(
        placeser.run(page_size=20, max_page_num=1, max_result_num=15)
        .get_property('address'))

    # complex sample

    # get zijing dormitory location from agent mode
    thu_main = BaiduMapObject(address='北京市清华大学紫荆宿舍')
    thu_main.from_address(raw_handler)
    thu_location = thu_main.get_property('location')['location']
    print('---\n\n起始坐标: %s' % (thu_location))

    # get circle search handle from factory mode
    # sort by distance
    circleser = get_handle(
        ak_key,
        'place/v2/search',
        is_list=True,
        query='火车站',
        scope=2,
        filter='sort_name:distance|sort_rule:1')

    circleser.set_params(radius=10000, location=thu_location)
    nearest_station = circleser.run(max_result_num=5)['results'][0]

    station_location = nearest_station.get_property('location')['location']
    print('万米内最近的火车站: %s' % (nearest_station.get_property('name')['name']))

    # get a handle to find road to hospital
    router = get_handle(ak_key, 'direction/v2/transit', is_list=True)

    router.set_params(origin=thu_location, destination=station_location)

    result = router.run()
    # print(repr(result))
    station = result.get_properties(['on_station', 'off_station'])
    print('提取出全部的on_station, off_station属性(地铁站名)')
    print(station)

Handle

Factory Mode

Get handle from factory function get_handle

from baidumap.api.handle import get_handle

Use name from baidu map web api


Sample

From baidu map web api

行政区划区域检索

http://api.map.baidu.com/place/v2/search?query=ATM机&tag=银行&region=北京&output=json&ak=您的ak //GET请求

The api path is http://api.map.baidu.com/place/v2/search (the / in the end or not is very important)

So this handle's name is place/v2/search(just remove the head of the api path)

# ak_key is the authority key of the baidu map
# you need to apply for it from ('http://lbsyun.baidu.com/index.php?title=%E9%A6%96%E9%A1%B5')
ak_key = '********************'

# you can set params when get it from factory
# (the first two is not params, they are ak_key and handle's name)
# set is_list: true to get multi-page result
place_search = get_handle(ak_key, 'place/v2/search', is_list=True)

# then use method set_params() to set request parameter
place_search.set_params(query='ATM机', region='北京')

# use method run to get result

# you can limit the max_page_num(=-1 not limited), page_size(=10, limited by baidu mao), max_result_num(=-1 not limited) and interval(=0 second between each request(too frequently request will be block by baidu map and baidumap.api will raise baidumap.api.exceptions.BaiduMapApiException))

# place_search.run([max_page_num=-1[, max_result_num=-1[, page_size=10[, interval=0]]]])
atm_in_beijing = place_search.run(max_page_num=3, page_size=20, max_result_num=55, interval=0.5)

# get result
print(atm_in_beijing)
# get property(find mode)
# will return a dict
print(atm_in_beijing.get_property('address'))

Agent Mode

You can also use handle by agent mode

first. you need to import BaiduMapObject

from baidumap.object import BaiduMapObject

second. you need to create a BaiduMapObject with some keys and values

thu_main = BaiduMapObject(address='北京市清华大学紫荆宿舍')

then. you need to create a raw handle with ak_key

raw_handle = get_handle(ak_key)

finally. you just call the agent method to fill the data of BaiduMapObject

# geography decoder call
# it will fill Object with location
thu_main.from_address(handle)

# geography encoder call
# it will fill Object with address and uid found by location
# it will create a list-like BaiduMapObject
thu_main.from_location(handle)

# create a object with uid
thu_main = BaiduMapObject(uid=thu_main.get_property('uid')[0].uid)

# uid info call
# it will fill Object with detail info found by uid
thu_main.from_uid(handle, detail=True)

Object

JsonLike

__init__(json=dict(), **kwargs)

JsonLike object can be inited with list or dict, you can replace some parameters by decalre kwargs

__str__()

JsonLike object will be transfered as str just like dict

is_list()

JsonLike object can be dict-like or list-like determined by which one init it

get_property(p_key, p_default=None)

if you want to read value of JsonLike, this method is suggested, it will return a dict.

if there is only one result, it will return dict as {key: value}

if there are more results, it will return a list-like dict which contains location

get_properties(p_keys, p_defaults=None)

you can combine two or more properties in one list-like dict

set_property(p_key, p_value)

you can't set key-value using <JsonLike>[key]=value

you are supposed to set property with this method, if there is no p_key in the JsonLike object, you can not set it with this method

keys()

return the keys in the JsonLike object

from_json(json, **kwargs)

reconstruct the JsonLike object by dict or list, can replace some properties by kwargs

to_json()

return dict in JsonLike

Location(JsonLike)

__str__()

location will be formatted as lat,lng

BaiduMapObject(JsonLike)

from_uid(handle, detail=False)

fill the BaiduMapObject by uid

needs a handle with valid ak_key

from_address(handle, detail=False)

fill the BaiduMapObject by address

needs a handle with valid ak_key

from_location(handle, detail=False)

fill the BaiduMapObject by location

needs a handle with valid ak_key

Exception

BaiduMapApiException

base exception

in baidumap.api.exception

HandleNotExistsError

inherit from BaiduMapApiException

handle name not valid

in baidumao.api.exception

NetError

inherit from BaiduMapApiException

net connection broken

in baidumao.api.exception

OtherError

inherit from BaiduMapApiException

error which can not be recognized

in baidumao.api.exception

How to work

core

package baidumap.core

collector

controller

status

util

package baidumap.util

dict_tool & list_tool

some safe operation functions

url

class Url

manager the params and url path

use package requests to get json by http request[GET]

Log

config

baidumap.config.mode

value description
config.value.DEBUG log detail information
config.value.INFO log important statement
config.value.WARNING log unsafe statement
config.value.ERROR log error
config.value.NONE no log

baidumap.config.filename

value description
None directly record in shell
Logger use module logging

Project details


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