Python, OAuth 2.0 & Google Data APIs

Since March of this year, Google has supported OAuth 2.0 for many APIs, including Google Data APIs such as Google Calendar, Google Contacts and Google Documents List. Google's implementation of OAuth 2.0 introduces many advantages compared to OAuth 1.0 such as simplicity for developers and a more polished user experience.

Google have just added support for this authorization mechanism to the gdata-python-client library-- let’s take a look at how it works by retrieving an access token for the Google Calendar and Google Documents List APIs and listing protected data.

Getting Started

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