php - python how to write data into a single file with different call -

-

i have python script , php page on website. have create csv file , write data onto in following manner-

php processes get requests , calls python script shell_exec, passing get variables it, json format. script here looks like-

... $var_a = $_get['a']; $var_b = $_get['b']; $var_c = $_get['c']; $post_data = array('item' => 'get-list',     'var a' => "$var_a",     'var b' => "$var_b",     'var c' => "$var_c"     ); $json_data = json_encode($post_data); $temp = shell_exec('python process_data.py "' . $json_data .'"'); echo $temp; ...

this script quite straight forward, collects get variables , forms json object of it. data passed process_data.py, processes data , saves data csv file, code is-

import sys, json, time, csv json_data = json.dumps(sys.argv[1]) def scr(json_data):     json_data = json_data     count = 0     json_list = json_data.split(',')     in json_list:         count=count+1     if(count==5):         lati = json_list[0].strip('{')         longi = json_list[1]         datestmp = json_list[2]         timestmp = json_list[3]         out = open('file.csv', 'w')         out.write('%s;' % lati.split(':')[1])         out.write('\n')         out.write('%s;' % longi.split(':')[1])         out.write('\n')         out.write('%s;' % datestmp.split(':')[1])         out.write('\n')         out.write('%s;' % timestmp.split(':',1)[1])         out.write('\n')         out.close()         print 'latitude: ',lati.split(':')[1],', longitude: ',longi.split(':')[1],', datestamp: ',datestmp.split(':')[1],', time: ', timestmp.split(':',1)[1]     else:         print 'wrong data received'  scr(json_data)

all things working well. data processed , saved. php script saves current data database. php 2 operations- 1. saves data database 2. pass data python script saves data csv file.

however, get data coming @ regular time-interval(say 1 or 2 seconds). so, call python file gets regular these intervals. have open csv file every 1-2 seconds, write data there. slow down processing.

i want csv file remain open till data coming, , close when get request not made long time. there way so?


Comments

Post a Comment

Popular posts from this blog

Delphi XE2 Indy10 udp client-server interchange using SendBuffer-ReceiveBuffer -

-
i use delphi xe2 , indy10 udp protocol. can't receive server echo on client side if use receivebuffer method. got "socket error # 10040" although send small echo message server client. console application illustrate problem below. in advance. program project1; {$apptype console} {$r *.res} uses system.sysutils, idglobal, idbasecomponent, idcomponent, idsockethandle, idudpclient, idudpserver, idudpbase, idstack; type tudp_serv = class(tidudpserver) procedure udpsvudpread(athread: tidudplistenerthread; adata: tidbytes; abinding: tidsockethandle); end; var udpserver: tudp_serv; udpcl: tidudpclient; bsnd, brcv: tbytes; s: string; k: integer; //============================================================================== procedure tudp_serv.udpsvudpread(athread: tidudplistenerthread; adata: tidbytes; abinding: tidsockethandle); begin writeln(' server read: ' + tohex(adata, length(adata))); abinding sendto(peerip, peerport, adat...
Read more

Qt ActiveX WMI QAxBase::dynamicCallHelper: ItemIndex(int): No such property in -

-
i new windows programming. here goes code objiwbemlocator = new qaxobject("wbemscripting.swbemlocator"); objwmiservice = objiwbemlocator->querysubobject("connectserver(qstring&,qstring&)",qstring("."),qstring("root\\cimv2")); qaxobject* returnlist = objwmiservice->querysubobject("execquery(qstring&)", qstring("select * %1").arg(domain)); qaxobject* result = returnlist->querysubobject("itemindex(int)", 0); i getting error on runtime qt activex wmi qaxbase::dynamiccallhelper: itemindex(int): no such property in but itemindex method exists msdn says the itemindex method not work collections not contain swbemobjects, such swbemmethodset, swbemnamedvalueset, swbemprivilegeset, swbempropertyset, , swbemqualifierset. what selecting ? have tried iterating on collection ? plus need minimum windows vista itemindex method. hope helps
Read more

Enable autocomplete or intellisense in Atom editor for PHP -

-
i'm first time user of atom editor php code. atom can autocomplete built-in functions of php. possible make editor autocomplete custom function written in separate file? function.php <?php function printsomething() { echo "hello world"; } index.php <?php require_once "function.php"; printsomething(); // autocompleted atom editor while typing thanks in advance. there text file in %userprofile%.atom called snippets.cson. in there can add snippet. more this: http://flight-manual.atom.io/using-atom/sections/snippets/ but need think can use later on other files well. otherwise need copy , paste.
Read more