MHSave and Python

Today I am playing with Python and Matplotlib. In BPQ32 you have the option to save the Most Heard list (MH) when you close BPQ32. This contains a lot of data that you can use. Above I made a plot of the received stations and the number of packets I received at 14.1022Mhz + 1000Hz at 300Baud. Now I am not a world programmer, so this could probably be easier or different. Below the script I have written and used.

import re, csv, zlib
import matplotlib.pyplot as plt
import numpy as np

#First get the data form the right port. 14.1022Mhz 300 Baud HF Packet

port4 = []

with open("MHSave.txt") as f:
        found_port4 = False

        for line in f:
                if line.startswith("Port:4"):

                        found_port4 = True

                if found_port4:
                        if line.startswith("Port:5"):
                                mod_string = line.replace('||', '')
                                mod_strings = re.sub("via.*$", "", mod_string)

with open('port4.txt', 'w') as fout:


# Convert it to a csv file
with open('port4.txt', 'r') as in_file:
    lines =
    stripped = [line.replace(","," ").split() for line in lines]
    grouped = zip(*[stripped]*1)
    with open('port4.csv', 'w') as out_file:
        writer = csv.writer(out_file)
        writer.writerow(('Epoch', 'Pack-rev', 'Call', 'Month', 'Day', 'Time'))
        for group in grouped:

# Matplotlib create a nice Plot of the received calls

filename = 'port4.csv'
with open(filename) as f:
    reader = csv.reader(f)
    header_row = next(reader)

    #Get Packets and Calls received
    packs, calls = [], []
    for row in reader:
        pack = int(row[1])
        call = str(row[2])

x = np.arange(len(calls))

fig, ax = plt.subplots()

ax.barh(x, packs, align='center')
ax.set_title("Call and Packets received on PI1LAP")
ax.set_xlabel('Received Packets')
ax.set_ylabel('Station Callsigns')
ax.set_xticks(packs, minor=True)