python - Send serial value and convert them to float? -

i trying convert serial data float.

i send serial data other program need float value, dont know how do.

the values send between 0 , 180, , these values received degrees, need values degrees. how do??

while true:     while z == true:         x = x+1         print x         if x == 180:             z = false     while z == false:         x = x-1         print x         if x == 0:             z = true       try:         envio=ser.write("x")      # write string         #print envio     except exception, e:         print "error en \n\t "+str(e)+"\n"         ser.close 

and x value received in script

ser.open() degree = ser.read()   x in range(1,400,10):     linea = (432,200)          linea_len = 100      x = linea[0] + math.cos(math.radians(degree)) * linea_len      y = linea[1] + math.sin(math.radians(degree)) * linea_len 

but x send serial seems binary, , need float.

i hope can me you!!

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tho complement question

complete code send data

    # -*- coding: utf-8 -*- """ created on thu aug 14 15:47:07 2014  @author: zucra """  import serial ser = serial.serial()  # open first serial port ser.port = 2 ser.baudrate = 4800 x=0 z = true try:     ser.open() except exception, e:     print "error en \n\t "+str(e)+"\n" print ser.name          # check port used  #for in range(1,1000): while true:     while z == true:         x = x+1         print x         if x == 9:             z = false     while z == false:         x = x-1         print x         if x == 0:             z = true           try:         envio=ser.write("x")      # write string         #print envio     except exception, e:         print "error en \n\t "+str(e)+"\n"         ser.close 

complete code of code receive serial

import pygame import sys, serial pygame.locals import * pygame.init() width = 865 height = 286    ser = serial.serial() ser.port = 2 ser.baudrate = 4800   def load_image(filename, transparent=false):         try: image = pygame.image.load(filename)         except pygame.error, message:                 raise systemexit, message         image = image.convert()         if transparent:                 color = image.get_at((0,0))                 image.set_colorkey(color, rleaccel)         return image    screen = pygame.display.set_mode((width, height)) pygame.display.set_caption("angulo pygame") background_image = load_image('fondo.png') ser.open() degree = float(ser.read(1))  # se define la letra por defecto fuente = pygame.font.font(none, 20)  screen.blit(background_image, (0, 0))     while true:     event in pygame.event.get():         if event.type == pygame.quit:             sys.exit()         elif event.type == pygame.keydown:             if event.key == k_escape:                 sys.exit()   #    event in pygame.event.get(): #        if event.type == pygame.quit: #            sys.exit()  #        elif event.type == pygame.keydown: #            if event.key == k_left: #                if degree < 180 :  #                    degree = degree + 1 #            elif event.key == k_right: #                if degree > 0: #                    degree = degree - 1 #            elif event.key == k_escape: #                sys.exit() #                ser.close()                   x in range(1,400,10):         linea = (432,200)              linea_len = 100          x = linea[0] + math.cos(math.radians(degree)) * linea_len          y = linea[1] + math.sin(math.radians(degree)) * linea_len      # render line linea->(x,y)     screen.blit(background_image, (0, 0))     texto = "%d" % (degree)     mensaje = fuente.render(texto, 1, (255, 255, 255))     screen.blit(mensaje, (450, 185))     pygame.draw.line(screen, color("red"), linea, (x,y), 5)     pygame.display.flip() #vuelca imagen 

i'm not clear on mean x binary, have tried

degree = float(ser.read())