Check Valid Mac Address from Database in Python code -


i want add mac address (validation) check before python script runs. there have database online. in script want add mac address check before runs script.

my script have right now

downloading files web server

so script wanna after

get mac adress android device. check mac address valid or not using pre-def list (db file)

if valid then

downloading files web server

this simple python program in finding valid mac address

import re  def checkmac(x):       if re.match("[0-9a-f]{2}([-:])[0-9a-f]{2}(\\1[0-9a-f]{2}){4}$", x.lower()):             return 1     else:             return 0  print checkmac("aa:bb:cc:dd:ee:ff") print checkmac("00-11-22-33-44-66") print checkmac("1 2 3 4 5 6 7 8 9 b c") print checkmac("this not mac")

it accepts 12 hex digits either : or - separators between pairs (but separator must uniform... either separators : or -).

this explanation:

[0-9a-f] means hexadecimal digit

{2} means want 2 of them

[-:] means either dash or colon. note dash first char doesn't mean range means itself. atom enclosed in parenthesis can reused later reference.

[0-9a-f]{2} pair of hexadecimal digits

\1 means want match same expression matched before separator. guarantees uniformity. note regexp syntax \1 i'm using regular string backslash must escaped doubling it.

[0-9a-f]{2} pair of hex digits

{4} previous parenthesized block must repeated 4 times, giving total of 6 pairs of digits: ( ) * 4

$ string must end right after them


Comments

Post a Comment

Popular posts from this blog

javascript - Using jquery append to add option values into a select element not working -

i'm looking dynamically populate select element names of items stored array. for reason it's not working , i'm not sure why. html: <div class="col-md-4 col-md-offset-4"> <select class="select1"> </select> , <select class="select2"> </select> </div> note i'm using bootstrap layout. here's jquery i'm using try , populate ".select1" jquery: select: function() { $.each(state.greens, function(index, value) { $(".select1").append("<option value =' " + index + " '>" + state.greens[index].name + "</option>"); }); } note function 'select' stored within object called 'display'. state.greens name of array i'm trying access. so @ end of html page call display.select(); call function. no error messages showing in console. also, saw question: appending
Read more

Android soft keyboard reverts to default keyboard on orientation change -

i'm building android soft keyboard , can't seem fix bug - have arabic , qwerty keyboard , when rotate device on qwerty keyboard (or arabic shift), it's if program has "restarted" , becomes arabic keyboard without shift. the onsaveinstancestate(bundle savedinstancestate) not work because application not extend activity inputmethodservice . i put following in android manifest android:configchanges="keyboard|keyboardhidden|orientation" android:windowsoftinputmode="stateunchanged|adjustresize"> i tried using @override public void onconfigurationchanged(configuration newconfig) { super.onconfigurationchanged(newconfig); log.i(mydebug, "config changed " + currentkeyboard.equals(qwerty)); } however, currentkeyboard.equals(qwerty)) results false , made sure true before orientation change. any appreciated. i think applications fault. if application restarting on orientation change
Read more

Rendering JButton to get the JCheckBox behavior in a JTable by using images does not update my table -

i rendering jbutton image on simulate jcheckbox behavior. why don't let jtable render jcheckbox? because need bigger checkboxes , there's no way can resize them (as far know). so, have own table cell renderer , editor. both renders jbutton , checkbox images on them. trying change image checked image unchecked image (or vice versa) , update cell value (boolean true or false). however, reason, getcelleditorvalue() not update table. so, release mouse, value goes original one. any appreciated! lot! public class tableexample extends jframe { jscrollpane pane; jpanel panel; jtable table; object[][] data; mytablemodel tm; renderer buttoncolumn; public tableexample(object[][] data) throws ioexception { string[] columns = {"column#1", "column#2", "column#3", "column#4", "column#5", "column#6"}; this.data = data; this.setpreferredsize(new dimension(700, 500));
Read more