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# Python3: bytes(raw 8-bit values), str V.S. Python2: str(raw 8-bit values), unicode

# In Python3
def to_str(bytes_or_str):
    if isinstance(bytes_or_str, bytes):
        value = bytes_or_str.decode('utf-8')
    else:
        value = bytes_or_str
    return value # Instance of str

vrootic

If you encountered some installation issue, try to use `pyside_postinstall.py -install` to solve this issue.

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#!/usr/bin/env python

import sys
import calendar
import time
import math

from PyQt4.QtGui import *
from PyQt4.QtCore import *

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total_x, total_y, total_yerr = draw_errorbar()
color = ['c', 'g', 'w', 'k']

label = ("1 day pattern", "1 week pattern", '2 weeks pattern', '3 weeks pattern')
hatch = ['', 'x', 'o', '/']
fig, ax = plt.subplots()
width = 0.2
widths = [-0.4, -0.2, 0, 0.2]
for i in range(4):
   ax.bar(np.array(total_x[i]) +  widths[i], total_y[i], width,

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In [37]: a = iter(range(45))

In [38]: zip(*[a, a, a])
Out[38]:
[(0, 1, 2),
 (3, 4, 5),
 (6, 7, 8),
 (9, 10, 11),
 (12, 13, 14),
 (15, 16, 17),

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In [54]: a = [i for i in range(10)]
In [58]: zip(*[iter(a), iter(a), iter(a), iter(a), iter(a)])
Out[58]:
[(0, 0, 0, 0, 0),
 (1, 1, 1, 1, 1),
 (2, 2, 2, 2, 2),
 (3, 3, 3, 3, 3),
 (4, 4, 4, 4, 4),
 (5, 5, 5, 5, 5),
 (6, 6, 6, 6, 6),

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#include <stdio.h>
#define SQUARE(a) (a * a)


int main() {
  printf("%d\n", SQUARE(4));
  int x = 3;
  printf("%d\n", SQUARE(++x));
  return 0;
}

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#!/usr/bin/env python
import numpy as np
import pandas as pd

import data_generator as dg

def reduce_data():

    result = []
    for day in dg.group_data():

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1. brew install libusb
2. brew install librtlsdr
3. brew install python
4. pip install pyrtlsdr
5. pip install numpy
6. pip install pandas
7. git clone https://github.com/roger-/pyrtlsdr.git
8. cd pyrtlsdr && python demo_waterfall.py

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import numpy as np
import matplotlib.pyplot as plt


data = []
with open("output.txt", "r") as f:
    for line in f.readlines():
        data.append(float(line))

x = []