From the Baidu Map API interface batch to obtain the latitude and longitude of the location

Today, my colleague wants to make a plan to get the latitude and longitude of more than 2000 addresses in Excel. Ask me there is no way, just my time to learn Python, think about it, think it can. So I wrote one of the following code. Just started to think that almost two hours can be done, the results cost more than half a day, Khan ... Mainly in the card from the Baidu Map API gets the coordinates are always wrong. Later on-line data to understand that the original from the Baidu API is Mercator coordinates, and the actual use of WGS84 coordinates.

1 #!/usr/bin/python2 #Coding:utf-83  4 Importxlrd5 ImportXLWT6 ImportRequests7 ImportUrllib8 ImportMath9 ImportReTen   OnePattern_x=re.compile (R'"x":(". +?")') APattern_y=re.compile (R'"y":(". +?")') -   - defmercator2wgs84 (Mercator): the     #Key1=mercator.keys () [0] -     #Key2=mercator.keys () [1] -point_x=Mercator[0] -Point_y=mercator[1] +x=point_x/20037508.3427892*180 -y=point_y/20037508.3427892*180 +y=180/math.pi* (2*math.atan (Math.exp (y*math.pi/180))-MATH.PI/2) A     return(x, y) at   - defget_mercator (addr): -Quote_addr=urllib.quote (Addr.encode ('UTF8')) -City=urllib.quote (U'Qiqihar Dragon'. Encode ('UTF8')) -Province=urllib.quote (U'Heilongjiang Province'. Encode ('UTF8')) -     ifQuote_addr.startswith (city)orQuote_addr.startswith (province): in         Pass -     Else: toquote_addr=city+quote_addr +S=urllib.quote (U'Beijing'. Encode ('UTF8')) -Api_addr="http://api.map.baidu.com/?qt=gc&wd=%s&cn=%s&ie=utf-8&oue=1&fromproduct=jsapi&res= api&callback=bmap._rd._cbk62300"%(quote_addr the , s) *req=requests.get (API_ADDR) $Content=req.contentPanax Notoginsengx=Re.findall (pattern_x,content) -y=Re.findall (pattern_y,content) the     ifx: +x=X[0] Ay=Y[0] theX=x[1:-1] +Y=y[1:-1] -x=float (x) $y=float (y) $location=(x, y) -     Else: -location=() the     return Location -  Wuyi defrun (): theData=xlrd.open_workbook ('Book2.xls') -rtable=data.sheets () [0] WuNrows=rtable.nrows -values=rtable.col_values (0) About       $workbook=XLWT. Workbook () -Wtable=workbook.add_sheet ('Data', cell_overwrite_ok=True) -row=0 -      forValueinchvalues: AMercator=Get_mercator (value) +         ifMercator: thewgs=mercator2wgs84 (Mercator) -         Else: $Wgs= ('NotFound','NotFound') the         Print "%s,%s,%s"% (value,wgs[0],wgs[1]) the wtable.write (Row,0,value) theWtable.write (row,1, Wgs[0]) theWtable.write (row,2,wgs[1]) -Row=row+1 in   theWorkbook.save ('Data.xls') the   About if __name__=='__main__': theRun ()

From the Baidu Map API interface batch to obtain the latitude and longitude of the location