Python3 base Else statement and try-except mate

Town Field Poem:
Cheng listens to the Tathagata language, the world name and benefit of Dayton. Be willing to do the Tibetan apostles, the broad show is by Sanfu mention.
I would like to do what I learned, to achieve a conscience blog. May all the Yimeimei, reproduce the wisdom of the body.
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EX1:
Code

#如果没出错, Else statement executes try:    raise OSError (' manual reason ') except OSError as reason:    print (' Yichang ', str (reason)) Else:    print (' No exception to program ') Finally:    print (' Anyway to execute here ')

Result

EX2:

Code

Try:    s=1except oserror as Reason:    print (' Yichang ', str (reason)) Else:    print (' No exception to program ') Finally:    print ( ' Anyway to be executed here ')

Result

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The essence of the blog, in the technical part, more in the town yard a poem. Python version 3.5, System Windows7.
Python is a good language and deserves to be studied hard. I am following the small Turtle Video tutorial to learn, recommended.
I am a novice, so if the content of the blog can be improved, or even the wrong place, please leave a comment, I will try to correct, strive to achieve a conscience blog.
Note: This article is only as a scientific research study, if I inadvertently violated your rights and interests, please be sure to timely inform, I will make corrections.

Python3 base Else statement and try-except mate