Namran Hussin Linux Python : How to write a function in python

Python : How to write a function in python

11 November , 2010 00:1111 November , 2010 00:11| Namran HussinNamran Hussin| 2 Comments | 00:11
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Due some circumtance , I had opted to use python script..

Well, for python script , you need to be extra careful with the white space
and tab..

this is an example of using python function to ease the work.

it might not be beautiful or simplified enough .. but enough to drive me nut
looking for the white space.

tips : do not combine usage of “tab” and “space” inside one python script… be consistent.
if using tab.. use tab till the end..
if using space.. use space all the time.
else it will drive you nut before you can nail where is the missing space.. :)

#!/usr/bin/python
import re
def getBM (eng):
    a = re.compile('No rain')
    tiada_hujan = a.match(eng)
    b = re.compile('rain')
    hujan = b.match(eng)
    c = re.compile('fair')
    cerah = c.match(eng)
    d = re.compile('Weather Fair')
    cerah2 = d.match(eng)
    p1 = re.compile('Weather Fair')
    p2 = re.compile('Clear')
    p3 = re.compile('Hazy')
    p4 = re.compile('Windy')
    p5 = re.compile('No rain')
    p6 = re.compile('Cloudy')
    p7 = re.compile('Cloudy over coastal areas')
    p8 = re.compile('Cloudy over inland areas')
    p9 = re.compile('Rain')
    p10 = re.compile('Intermittent rain occasionally moderate')
    p11 = re.compile('Intermittent rain occasionally heavy')
    p12 = re.compile('Widespread intermittent rain')
    p13 = re.compile('Isolated rain')
    p14 = re.compile('Isolated rain over coastal areas')
    p15 = re.compile('Isolated rain over inland areas')
    p16 = re.compile('Scattered rain')
    p17 = re.compile('Scattered rain over coastal areas')
    p18 = re.compile('Scattered rain over inland areas')
    p19 = re.compile('Showers')
    p20 = re.compile('Isolated showers')
    p21 = re.compile('Isolated showers over coastal areas')
    p22 = re.compile('Isolated showers over inland areas')
    p23 = re.compile('Thunderstorms')
    p24 = re.compile('Isolated thunderstorms')
    p25 = re.compile('Scattered thunderstorms')
    p26 = re.compile('Widespread thunderstorms') 
    mp1 = p1.match(eng)
    mp2 = p2.match(eng)
    mp3 = p3.match(eng)
    mp4 = p4.match(eng)
    mp5 = p5.match(eng)
    mp6 = p6.match(eng)
    mp7 = p7.match(eng)
    mp8 = p8.match(eng)
    mp9 = p9.match(eng)
    mp10 = p10.match(eng)
    mp11 = p11.match(eng)
    mp12 = p12.match(eng)
    mp13 = p13.match(eng)
    mp14 = p14.match(eng)
    mp15 = p15.match(eng)
    mp16 = p16.match(eng)
    mp17 = p17.match(eng)
    mp18 = p18.match(eng)
    mp19 = p19.match(eng)
    mp20 = p20.match(eng)
    mp21 = p21.match(eng)
    mp22 = p22.match(eng)
    mp23 = p23.match(eng)
    mp24 = p24.match(eng)
    mp25 = p25.match(eng)
    mp26 = p26.match(eng)

    if tiada_hujan:
        return "Tiada Hujan"
    if hujan:
        return "Hujan"
    if cerah:
        return "Cerah" 
    if cerah2:
        return "Cerah"
    if mp1:
        return "Cuaca Baik"
    if mp2:
        return "Cerah"
    if mp3:
        return "Berjerebu"
    if mp4:
        return "Berangin"
    if mp5:
        return "Tiada Hujan"
    if mp6:
        return "Mendung"
    if mp7:
        return "Mendung di kawasan pantai"
    if mp8:
        return "Mendung di kawasan pedalaman"
    if mp9:
        return "Hujan"
    if mp10:
        return "Hujan sekejap-sekejap kadangkala sederhana"
    if mp11:
        return "Hujan sekejap-sekejap kadangkala lebat"
    if mp12:
        return "Hujan sekejap-sekejap yang menyeluruh"
    if mp13:
        return "Hujan di satu dua tempat"
    if mp14:
        return "Hujan di beberapa tempat di kawasan pantai"
    if mp15:
        return "Hujan di beberapa tempat di kawasan pedalaman"
    if mp16:
        return "Hujan curah/sementara di satu dua tempat"
    if mp17:
        return "Hujan curah/sementara di kawasan pantai"
    if mp18:
        return "Hujan curah/sementara di kawasan pedalaman"
    if mp19:
        return "Hujan curah"
    if mp20:
        return "Hujan curah di satu dua tempat"
    if mp21:
        return "Hujan curah di kawasan pantai"
    if mp22:
        return "Hujan curah di kawasan pedalaman"
    if mp23:
        return "Ribut petir"
    if mp24:
        return "Ribut petir di satu dua tempat"
    if mp25:
        return "Ribut petir di beberapa tempat"
    if mp26:
        return "Ribut petir di kebanyakan tempat"
    else:
        return eng

# example usage : 
print "translating 'No rain' = " + getBM("No rain")

then to test it..

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2 thoughts on “Python : How to write a function in python”

  1. the above function can be simplified a but further with the following :

    #!/usr/bin/python

def getBM (eng): 
    if eng == 'No rain':
        return "Tiada Hujan"
    if eng == 'Rain':
        return "Hujan"
    if eng == 'fair':
        return "Cerah" 
    if eng == 'Weather Fair':
        return "Cuaca Baik"
    if eng == 'Clear':
        return "Cerah"
    if eng == 'Hazy':
        return "Berjerebu"
    if eng == 'Windy':
        return "Berangin"
    if eng == 'No rain':
        return "Tiada Hujan"
    if eng == 'Cloudy':
        return "Mendung"
    if eng == 'Cloudy over coastal areas':
        return "Mendung di kawasan pantai"
    if eng == 'Cloudy over inland areas':
        return "Mendung di kawasan pedalaman"
    if eng == 'Rain':
        return "Hujan"
    if eng == 'Intermittent rain occasionally moderate':
        return "Hujan sekejap-sekejap kadangkala sederhana"
    if eng == 'Intermittent rain occasionally heavy':
        return "Hujan sekejap-sekejap kadangkala lebat"
    if eng == 'Windspread intermittent rain':
        return "Hujan sekejap-sekejap yang menyeluruh"
    if eng == 'Isolated rain':
        return "Hujan di satu dua tempat"
    if eng == 'Isolated rain over coastal areas':
        return "Hujan di beberapa tempat di kawasan pantai"
    if eng == 'Isolated rain over inland areas':
        return "Hujan di beberapa tempat di kawasan pedalaman"
    if eng == 'Scattered rain':
        return "Hujan curah/sementara di satu dua tempat"
    if eng == 'Scattered rain over coastal areas':
        return "Hujan curah/sementara di kawasan pantai"
    if eng == 'Scattered rain over inland areas':
        return "Hujan curah/sementara di kawasan pedalaman"
    if eng == 'Showers':
        return "Hujan curah"
    if eng == 'Isolated showers':
        return "Hujan curah di satu dua tempat"
    if eng == 'Isolated showers over coastal areas':
        return "Hujan curah di kawasan pantai"
    if eng == 'Isolated showers over inland areas':
        return "Hujan curah di kawasan pedalaman"
    if eng == 'Thunderstorms':
        return "Ribut petir"
    if eng == 'Isolated thunderstorms':
        return "Ribut petir di satu dua tempat"
    if eng == 'Scattered thunderstorms':
        return "Ribut petir di beberapa tempat"
    if eng == 'Widespread thunderstorms':
        return "Ribut petir di kebanyakan tempat"
    else:
        return eng
 
# example usage : 
print "translating 'No rain' = " + getBM("No rain")
print "translating 'No rain' = " + getBM("Scattered thunderstorms")
print "translating 'No rain' = " + getBM("Scattered rain over inland areas")

    hmm. if putting into a file and read from there would be much more better.

  2. yeah..

    to make it read from a text file and behave exactly as above.

    #!/usr/bin/python

import csv
# to read from a file with list of weather.
reader = csv.reader(open("weather_list.txt", "rb"), delimiter=':', quoting=csv.QUOTE_NONE)
# build up a reference list
kamus = {}
for row in reader:
 english_w=row[0].lstrip(' ').strip(' ')
 bm_w=row[1].lstrip(' ').strip(' ')
 kamus[english_w] = bm_w

# a function to return exactly the same
def getBM (eng) :
 return kamus[eng]
# example usage : 
print getBM ("Isolated showers");
print getBM ("Rain");

    then create text file with the following content.

    [namran@nb-namran Desktop]$ cat weather_list.txt 
Weather Fair:Tiada Hujan
Clear:Cerah
Hazy:Berjerebu
Windy:Berangin
No rain:Tiada Hujan
Cloudy:Mendung
Cloudy over coastal areas:Mendung di kawasan pantai
Cloudy over inland areas:Mendung di kawasan pedalaman
Rain:Hujan
Intermittent rain occasionally moderate:Hujan sekejap-sekejap kadangkala sederhana
Intermittent rain occasionally heavy:Hujan sekejap-sekejap kadangkala lebat
Widespread intermittent rain:Hujan sekejap-sekejap yang menyeluruh
Isolated rain:Hujan di satu dua tempat
Isolated rain over coastal areas:Hujan di beberapa tempat di kawasan pantai
Isolated rain over inland areas:Hujan di beberapa tempat di kawasan pedalaman
Scattered rain:Hujan curah/sementara di satu dua tempat
Scattered rain over coastal areas:Hujan curah/sementara di kawasan pantai
Scattered rain over inland areas:Hujan curah/sementara di kawasan pedalaman
Showers:Hujan curah
Isolated showers:Hujan curah di satu dua tempat
Isolated showers over coastal areas:Hujan curah di kawasan pantai
Isolated showers over inland areas:Hujan curah di kawasan pedalaman
Thunderstorms:Ribut petir
Isolated thunderstorms:Ribut petir di satu dua tempat
Scattered thunderstorms:Ribut petir di beberapa tempat
Widespread thunderstorms:Ribut petir di kebanyakan tempat

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