prettytable a list of lists

''' prettytable103.py
explore module prettytable with list of lists data

get
prettytable-0.7.2.zip
from
https://pypi.python.org/pypi/PrettyTable
extract the zip file t\and copy prettytable.py to /Lib/side-packages

'''

from prettytable import PrettyTable

# created from article in:
# http://pypl.github.io/PYPL.html
header = ['Rank', 'Language', 'Share(%)', 'Trend']
lang_list = [
['1', 'Java', '24.7', '-0.4'],
['2', 'PHP', '11.7', '-1.2'],
['3', 'Python', '10.6', '+0.9'],
['4', 'C#', '8.9', '-0.3'],
['5', 'C++', '8.2', '-0.5'],
['6', 'C', '7.8', '+0.1'],
['7', 'Javascript', '7.2', '-0.3'],
['8', 'Objective-C', '6.1', '-0.2'],
['9', 'Matlab', '3.0', '-0.2'],
['10', 'R', '2.7', '+0.6'],
['11', 'Ruby', '2.5', '+0.0'],
['12', 'Swift', '2.5', '+2.9'],
['13', 'Visual Basic', '2.3', '-0.7'],
['14', 'Perl', '1.3', '-0.3'],
['15', 'lua', '0.5', '-0.1']]

pt = PrettyTable(header)
# left align Language column (center is default)
pt.align["Language"] = "l"
# right align Rank column values
pt.align["Rank"] = "r"
# space between column edges and contents (1 = default)
pt.padding_width = 1

for item in lang_list:
    pt.add_row(item)

print(pt)
print("(Trend is in % vs a year ago)")

''' result ...
+------+--------------+----------+-------+
| Rank | Language     | Share(%) | Trend |
+------+--------------+----------+-------+
|    1 | Java         |   24.7   |  -0.4 |
|    2 | PHP          |   11.7   |  -1.2 |
|    3 | Python       |   10.6   |  +0.9 |
|    4 | C#           |   8.9    |  -0.3 |
|    5 | C++          |   8.2    |  -0.5 |
|    6 | C            |   7.8    |  +0.1 |
|    7 | Javascript   |   7.2    |  -0.3 |
|    8 | Objective-C  |   6.1    |  -0.2 |
|    9 | Matlab       |   3.0    |  -0.2 |
|   10 | R            |   2.7    |  +0.6 |
|   11 | Ruby         |   2.5    |  +0.0 |
|   12 | Swift        |   2.5    |  +2.9 |
|   13 | Visual Basic |   2.3    |  -0.7 |
|   14 | Perl         |   1.3    |  -0.3 |
|   15 | lua          |   0.5    |  -0.1 |
+------+--------------+----------+-------+
(Trend is in % vs a year ago)
'''