hpr2344 :: Follow on to HPR2340 (Tracking the HPR queue in Python) - Âm thanh Lưu trữ Miễn phí

Summary: Improved version of script to capture the number of HPR shows in the queue using python.

Series: Programming 101

Source: [http://hackerpublicradio.org/eps.php?id=2344](http://hackerpublicradio.org/eps.php?id=2344)

This is a follow up to my previous show HPR2340, the improvement being I use the available STATS file from the hpr website rather than scraping the content from the HPR calendar page

• Link to my original show HPR2340

[https://hackerpublicradio.org/eps.php?id=2340](https://hackerpublicradio.org/eps.php?id=2340)

• Link to the excellent episode HPR1986 from Dave Morriss which references the stats file

[https://hackerpublicradio.org/eps/hpr1986/full\_shownotes.html#example-2](https://hackerpublicradio.org/eps/hpr1986/full\_shownotes.html#example-2)

• Link to useful HPR Stats page

[https://hackerpublicradio.org/stats.php](https://hackerpublicradio.org/stats.php)

Snapshot contents (2017-06-23) of 'stats.txt' file which was actually called 'hpr_stats.txt' my mistake

Started: 11 years, 8 months, 19 days ago (2005-10-10)Renamed HPR: 9 years, 5 months, 27 days ago (2007-12-31)Total Shows: 2911Total TWAT: 300Total HPR: 2611HPR Hosts: 286Days to next free slot: 17Hosts in Queue: 9Shows in Queue: 14Comments waiting approval: 0Files on the FTP Server: 1Number of Emergency Shows: 7Days until show without media: 01498246151,369343750,299186950,2911,300,2611,286,17,9,14,0,1,7,0

• Link to Meld the great visual diff and merge tool

[https://meldmerge.org](https://meldmerge.org)/

#!/usr/bin/env python3### This is a scratchpad file I've created to try out snippets of code in python# The script below is for use with Python 3# This script should work out of the box on most systems running a version of Python 3 # If you happen to have a blinkstick lying about then your can uncomment the blinkstick module# and uncomment the references at the bottom of the program that call the blinkstick functions# Regrds, Mr X# Imported modulesfrom time import sleep # used to pause program#from blinkstick import blinkstick # used to control blinkstick nano attached to usb port of raspberry piimport urllib.request # used to capture hpr webpage content to get the number of HPR shows in the queimport re # regular expressions, used to find sting in HPR webpage (get_hpr_que)# These functions control a blink stick nano attached to my raspberry pi USB port ################## They can be ignored or deleted if you don't have onedef bstick_off():# Search for all attached blinksticks and turn them all off for bstick in blinkstick.find_all(): bstick.turn_off() # Turn front blinkstick LED off bstick.set_color(channel=0, index=1, name="black") # Turn rear blinkstick led off print("Blinkstick: " + bstick.get_serial() + " turned off")def bstick_on(colour):# Turn blinkstick on and set led colour to string value stored in var colour# valid colours are, black, silver, gray, white, maroon, red, purple, fuchsia, green, lime, olive, yellow, navy, blue, teal, aqua for bstick in blinkstick.find_all(): bstick.set_max_rgb_value(30) # Sets max blinkstick RGB value to 15, makes LED dimm bstick.set_color(name=colour) # Turn blinkstick on, var colour determines colour print ("Blinkstick: " + bstick.get_serial() + " | Colour: " + bstick.get_color(color_format="hex") + " [" + colour + "]")#hexdef bstick_on_random():# Turn blinkstick on colour random for bstick in blinkstick.find_all(): bstick.set_random_color() print ("Blinkstick: " + bstick.get_serial() + " | Colour: " + bstick.get_color(color_format="hex"))def bstick_blink_red():# Flash blinkstick colour red for bstick in blinkstick.find_all(): bstick.blink(name="red") print ("Blinkstick: " + bstick.get_serial() + " | Colour: " + bstick.get_color(color_format="hex"))################################################################################def get_hpr_que_improved():# Goto hacker public stats page and extract the number of days to next free slot# turns on blinkstick LED with colour dependent on the number of days to next free slot in HPR queue url = 'https://hackerpublicradio.org/stats.php' # HPR url for stats page try: text = urllib.request.urlopen(url).read() # Try to read hpr stats text except: print("ERROR: Problem acessing url " + url) # if error accessing url then return -1 hpr_shows = -1 return hpr_shows #print(text) # DEBUG text_page = str(text) # convert text from list to string line_begin = text_page.find('Days to next free slot:') # find position of string in page line_end = line_begin + 27 # Store line end position (start position + 27) line = text_page[line_begin:line_end] # Capture string line #print(line) # DEBUG Print line string digit = re.findall(r'\d+',line) # Find digits in line #print(digit[0]) # DEBUG print the 1st digit try: hpr_shows = int(digit[0]) # convert digit list to integer days except: # If show numbers not found then return -1 print("ERROR: Problem getting number of HPR shows in que.") hpr_shows = -1 return hpr_shows if hpr_shows > 9: # If hpr show que > 9 turn on green LED print("Turn on green blinkstick LED") #bstick_on("green") elif hpr_shows > 5: # Else if hpr show que > 5 turn on blue LED print("Turn on blue blinkstick LED") #bstick_on("blue") elif hpr_shows > -1: # Else if hpr show que > -1 turn on ref LED print("Turn on red blinkstick LED") #bstick_on("red") else: print("Flash red blinkstick LED") #bstick_blink_red() # Else blink LED to show error print("The are " + str(hpr_shows) + " days to tne next free slot in the HPR que...") sleep(4) print("Turn off all blinkstick LED's") #bstick_off() # Turn blinkstick off# Main programget_hpr_que_improved()