Python exercise: convert Strings

exercise:

print("Python exercise: String")

HelloString = "hEllO PYTHON!"
print(HelloString)

print ("capitalize(): " + HelloString.capitalize())
print ("title(): " + HelloString.title())
print ("upper():" + HelloString.upper())
print ("lower()" + HelloString.lower())

output:

Python exercise: Slicing Strings

exercise:

HelloString = "Hello Python!"
print(HelloString)

print("Python exercise: Slicing Strings")
print (HelloString[2:10])   #from index 2 to 10-1
print (HelloString[2:])     #from index 2 to end
print (HelloString[:10])    #from begin to 10-1
print (HelloString[::3])    #every 3 characters
print (HelloString[::-1])   #every characters in reverse order

output:

Python exercise: get character in string using negative indexing

exercise:

HelloString = "Python!"
print(HelloString)

StringLen = len(HelloString)
print("String Length: " + str(StringLen))

print("Print in normal order")
for i in range(0, StringLen):
    print(HelloString[i])

print("Print in reverse order, negative indexing")
for i in range(1, StringLen+1):
    print(HelloString[-i])    

output:

Download Python 2.5.4 for Windows

If you want to develop Python with PyGame on Windows, may be you prefer to download Python 2.5.4 rather than the current 2.7.1 or 3.2.

According to Pygame download page: python2.5.4 is the best python on windows at the moment.

Python 2.5.4 can be downloaded here.

Other old release are listed here.

Download Python for Windows

Python is available to download in http://www.python.org/download/.

The current production versions are Python 2.7.1 and Python 3.2.

If you don't know which version to use, start with Python 2.7; more existing third party software is compatible with Python 2 than Python 3 right now.

Google I/O 2011: Python@Google