>>> s = '491 43140113108107 11210'
>>> s
'491 43140113108107 11210'
>>> def splitCount(s, count):
return [''.join(x) for x in zip(*[list(s[z::count]) for z in range(count)])]
>>> a = splitCount(s, 3)
>>> a
['491', ' 43', '140', '113', '108', '107', ' 11', '210']
>>> b = ' '.join(a)
>>> b
'491 43 140 113 108 107 11 210'
Not quite sure what You mean,but here are som min/max method that can help
>>> a = min([0,7],[100,25],[150,59],[300,189])
>>> a
[0, 7]
>>> b = min(a)
>>> b
0
>>> c = max([0,7],[100,25],[150,59],[300,189])
>>> c
[300, 189]
>>> d = max(c)
>>> d
300
#same with max
>>> list_of = ([0,7],[100,25],[150,59],[300,189])
>>> for item in list_of:
min(item)
0
25
59
189
>>> list_of = ([0,7],[100,25],[150,59],[300,189])
>>> def flatten(list_of):
for item in list_of:
for element in item:
yield element
>>> a = list(flatten(list_of))
>>> a
[0, 7, 100, 25, 150, 59, 300, 189]
>>> print min(a), max(a)
0 300
>>>
Not much help to give you without solving it. Look a little on this.
>>> km = raw_input('How many km? ')
How many km? 100
>>> km
'100'
>>> #As you see km is now a string
>>> type(km)
<type 'str'>
>>> #make intreger
>>> int(km)
100
>>> #100 * ??? what mystery number give miles?
For python 2.x use always raw_input(and convert to what you need) Python 3.x has only input same as raw_input(it return a string too)
I been using komodo ide for some years now. Been happy with it,works fine for wxpython/pygame not that you need own ide for that. http://www.activestate.com/komodo/
Why do I have to specify 'self' while defining the function? I usually don't do it if the function isn't in a class, then why if it is in a class
In a class a function is called a method. An example.
class SimpleClass(object):
def SayHello(self, string):
'''
* This is a function,but in a class it is called a method
* Self is the class glue,and it also transport data between metods
* Think of self as a carrier
'''
print 'Hi,' + string + ' nice to see you'
make_object = SimpleClass() #Class instance
make_object.SayHello('Tom') #Call method,we give one argument(self dont count)
'''
output-->
Hi,Tom nice to see you
'''
global a a=1
class myThread(threading.Thread): def run(self): print(a) a+=1global a a=1
class myThread(threading.Thread): def run(self): print(a) a+=1
a = 1 is in the global namespace(scope) Then global a is doing nothing.
Maybe is better to take away threading and try to understand how classes work first?
But the problem in bumsfeld's method is that if the number I enter is huuge, then the simplified one itself be two or three characters length..so then how do I go about it?
This will work for adding integer together.
while True:
total = sum([int(x) for x in raw_input('Enter integer')])
if total <= 9:
print 'Less than 10'
break
else:
print total
Python has a build in function "eval" Eval evaluates a Python expression and returns the resulting value.
>>> eval(raw_input("Enter an arithmetic expression: "))
>>> Enter an arithmetic expression: 8/2*25-258+5896
>>> 5738
while True:
total = eval(raw_input("Enter an expression: "))
if total <= 9:
print 'Less than 10'
break
else:
print total
mean also downgrading the python version just to use a different toolkit, only to be regraded later when wx works with v3 and then i reupgrade.
There is now upp and downgrade in python. Most off us you 2.x,that dosent mean that we dont test python 3.x out. Have off course both 2.x and 3.x installed.
There are to much info and 3 part modules one need to only use 3.x And most books are for 2.x
When learing 2.x you do off couse learn 3.x,they changes arent that big.
You can use 2to3 module for covert code from 2.x to 3.x That`s work fine,but not needed more for test to see the difference.
One day all will use 3.x,but why hurry?
If one only use 3.x will this not give any advances in the future? No not at all,because all info about learing this great language is in 2.x This is info man for sure need. They changes are way to small to trow that info away.
Just to make it very clear what it`s dos. Save my kode as menu.py (menuloop program)
Now copy this file an run it.
import menu # menu.py
def test(input_name):
print 'Hi!' ,input_name
while True:
a = raw_input('What to play a game? ')
if a == 'yes':
menu.menuloop() # Call my menuloop program
else:
exit()
test('Roy')
Now it run correct first it run my new code and when a call menuloop() it run that after.
Take away __name__ == '__main__': Run the same. Now menuloop() start before my new code. Now you understand what if __name__ == '__main__': dos.
I am not sure I fully understand, I know if I misstype things it will error
If someone misstyping,there are 2 options. You write in code that handlig excepitons. Or you try to write code that dont need excepiton handling. Like i did in my example. http://docs.python.org/tutorial/errors.html
Sure you can get this to work,but i have to say your code is somewhat messy. But try to write a game like this you are learing many thing.
# use Tkinter's file dialog window to get
# a file name with full path, you can also use
# this to get filenames for a console program
# askopenfilename() gives one selected filename
# with Python25 use ...
#import Tkinter as tk
#from tkFileDialog import askopenfilename
# with Python30 use ...
import tkinter as tk
from tkinter.filedialog import askopenfilename
root = tk.Tk()
# show askopenfilename dialog without the Tkinter window
root.withdraw()
# default is all file types
file_name = askopenfilename()
print(file_name)
>>> import tkinter as tk
>>> print(tk.filedialog.__doc__)
File selection dialog classes.
Classes:
- FileDialog
- LoadFileDialog
- SaveFileDialog
This module also presents tk common file dialogues, it provides interfaces
to the native file dialogues available in Tk 4.2 and newer, and the
directory dialogue available in Tk 8.3 and newer.
These interfaces were written by Fredrik Lundh, May 1997.
# Give you a list of method under tk
>>>dir(tk)
new = raw_input('Enter name: ')
class Test(object):
def __init__(self,value):
self.value = value
x = Test(new)
print x.value
'''
output-->
Enter name: hi
hi
'''
Here is a class you can look,with some basic function of a class. Paulthom12345 has a good eksample how a class can inheritance from other class.
Just little fix to Paulthom12345 code. Shape.__init__(name) change to Shape.__init__( self, name )
class SimpleClass(object):
'''Doc string info about class'''
# Class attributes as you see this is variables
# They the belong to a class therefor name 'attributes'
x = 5
y = 10
s = x + y
def __init__(self, string):
'''
* Self is the class glue,and also transport data between methods
* When you make_object everything in this method get run because of __init__
'''
self.string = string
print 'In the constructor'
print 'Value from argument -->', string
print ''
def SayHello(self, string):
'''This is a function,but in a class it is called a method'''
print 'Hi, ' + string + '.'
def data_get(self):
'''Recive data from __init__'''
print 'Data from __init__ -->', self.string #Try without self
# Run one and one line understand whats happens
make_object = SimpleClass('I am an argument') # Class instance
#make_object_new = SimpleClass("argument from new object") # New class instance
#make_object.SayHello('This is Python and i like it')
#make_object_new.SayHello('Object_new like python to')
#make_object.data_get()
#print make_object.x
#print make_object.s
#print make_object_new.y
#print make_object.__doc__
#print help(SimpleClass)
Here i make a copy of the list,then iterating over it. It is not a good ideé to delete/add somthing from a list you are iterating over. The solution is to make a copy or new list.
mylist = ['bunnies', 'apples', 'animals', 'fruit', 'amsterdam']
for item in mylist[:]:
if item[0] == 'a':
mylist.remove(item)
print mylist
'''
output--->
['bunnies', 'fruit']
'''
This maybe easyer to read.
lst = ['bunnies', 'apples', 'animals', 'fruit', 'amsterdam']
new_lst = []
for item in lst:
if item[0] != 'a':
new_lst.append(item)
print new_lst
'''
output--->
['bunnies', 'fruit']
'''
Or maybe a more elegant solution with a function
def list_remove(item):
if item[0] == 'a':
return False
return True
lst = ['bunnies', 'apples', 'animals', 'fruit', 'amsterdam']
lst1 = [item for item in lst if list_remove(item)]
print lst1
'''
output--->
['bunnies', 'fruit']
'''
TypeError: argument 1 must be a string or read-only buffer, not list
readlines()--> return a list. Convert list to sting.
>>> my_file = open('test1.txt', 'r')
>>> x = my_file.readlines()
>>> x
['1e+12']
>>> type(x) # use this to find out what datatype you are dealing with
<type 'list'>
>>> y = ''.join(x) # list to string
>>> type(y)
<type 'str'>
>>> y
'1e+12'
>>> finish = y.replace('e+', '*(10**') + ')'
>>> finish
'1*(10**12)'
Or use a for loop.
my_file = open('test1.txt', 'r')
x = my_file.readlines()
for item in x:
item
finish = item.replace('e+', '*(10**') + ')'
print finish
'''
My output--->
1*(10**12)
'''
