7 Segment Display LSBFirst

import RPi.GPIO as GPIO
import time

LSBFIRST = 1
MSBFIRST = 2

dataPin   = 11    #DS Pin of 74HC595(Pin14)
latchPin  = 13    #ST_CP Pin of 74HC595(Pin12)
clockPin = 15    #CH_CP Pin of 74HC595(Pin11)

def setup():
  GPIO.setwarnings(False)
  GPIO.setmode(GPIO.BOARD)
  GPIO.setup(dataPin, GPIO.OUT)
  GPIO.setup(latchPin, GPIO.OUT)
  GPIO.setup(clockPin, GPIO.OUT)
  
def shiftOut(dPin,cPin,order,val):
  for i in range(0,8):
    GPIO.output(cPin,GPIO.LOW);
    if(order == LSBFIRST):
      GPIO.output(dPin,(0x01&(val>>i)==0x01) and GPIO.HIGH or GPIO.LOW)
    elif(order == MSBFIRST):
      GPIO.output(dPin,(0x80&(val<<i)==0x80) and GPIO.HIGH or GPIO.LOW)
    GPIO.output(cPin,GPIO.HIGH);  
	
def loop():
  while True:

    # number 0xfc is 0
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0xfc)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
    # number 0x60 is number 1
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x60)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
    # number 0xda is number 2
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0xda)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
            
    # number 0xf2 is number 3
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0xf2)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
    # number 0x66 is number 4
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x66)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
        
    # number 5 is 0xb6 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0xb6)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
    
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
    # number 6 is 0xbe
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0xbe)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
    
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
    # number 0xe0 is number 7
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0xe0)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
    # number 0xfe is number 8
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0xfe)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
        
    # number 0xe6 is number 9
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0xe6)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
    # number 0xee is number 10 or A
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0xee)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
    # number 0x3e is number 11 or b
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x3e)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
    
    # number 0x1a is 12 or c
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x1a)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
    # number 0x7a is 13 or d
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x7a)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)  
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)
    
    # number 0x9e is 14 or e
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x9e)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)  
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)     
     
      # number 0x8e is 15 or f
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,LSBFIRST,0x8e)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(2)  
         
    # blank 
    GPIO.output(latchPin,GPIO.LOW)
    shiftOut(dataPin,clockPin,MSBFIRST,0x00)
    GPIO.output(latchPin,GPIO.HIGH)
    time.sleep(0.1)    
     
     
     
def destroy(): 
  GPIO.cleanup()

if __name__ == '__main__':
  print ('Program is starting...' )
  setup() 
  try:
    loop()  
  except KeyboardInterrupt:  
    destroy()

7Segment_LSBFirst.py

Logic Table for LSBFirst.  Least Significant Bit is A.  It would be thefirst bit: A to H

A-D is the First Bit
E-H is the Second Bit

First Bit= 8*D + 4*C + 2*B + 1*A
Second Bit = 8*H + 4*G + 2*F + 1*E

It is done in Hex:  0-9 are just 0-9.   10 is A, 11 is B, 12 is C, 13 is D, 14 is E, 15 is F.