Python Orientation
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Python Orientation

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Python Basics Tutorial, Intro to Python ...

Python Basics Tutorial, Intro to Python
Python Data types 
Functions, method
Basic Elements, program structure
Exceptions, Errors
Strings, methods
Python module
OO Python:inheritance, staticmethod, classmethod, abc,
Regular Expressions
File I/O, SQlite DB
Intro to Python, web framework dJango, testing

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Python Orientation Python Orientation Document Transcript

  • This presentation cannot be shared unless the course is completed. The slides can be shared by the course provider end of the session only. 1
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  • Gives a brief overview of the Python programming. Describe the major focus of the presentation and why it is important. Introduce each of the major topics. To provide a road map for the audience, you can repeat this Overview slide throughout the presentation, highlighting the particular topic you will discuss next. 3
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  • https://wiki.python.org/moin/WebFrameworks 5
  • WEBSERVICES PYTHON – SOA • http://www.pythomnic3k.org/tour-resources.html • http://pyvideo.org/speaker/377/jessica-mckellar • http://flask.pocoo.org/ • http://www.oracle.com/technetwork/articles/dsl/mastering-oracle-python1391323.html 6
  • Qt Cross platform framework (Win/Mac/X11, soon S60) Native look and feel Modular (Core, GUI, Network, OpenGL, SQL, WebKit, etc) Mature Internationalization Excellent documentation Available under both commercial and Open Source licenses 7
  • This is another option for an Overview slides using transitions. 8
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  • The purpose of this presentation is to make the case for three technologies ... (see next slide) 12
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  • There is no standard definition of "scripting language", but this set of criteria pretty much captures what most people mean by the term. Note that Java is interpreted (it requires a JVM) but it is statically (strongly) typed and requires a compilation step, so it is not a scripting language. 14
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  • I got tired of cutting and pasting in pictures. This selection is possibly one-third of the Python books on the market in May of 2003. One way to judge the acceptance of a language is by how many O'Reilly books cover it! Note that there are several O'Reilly books on this page, including "Python in a Nutshell" (a VERY good book), and there are others not shown – "Learning Python" by Lutz, the "Python Cookbook", etc. 22
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  • >>> a=[[1,2,3],[4,5,6],[7,8,9]] >>> b=[[1,1,1],[1,1,1],[1,1,1]] >>> a [[1, 2, 3], [4, 5, 6], [7, 8, 9]] >>> b [[1, 1, 1], [1, 1, 1], [1, 1, 1]] >>> c=[[0, 0, 0], [0, 0, 0], [0, 0, 0]] >>> for i in range(3): ... for j in range(3): ... c[i][j]=a[i][j] + b[i][j] ... >>> c [[2, 3, 4], [5, 6, 7], [8, 9, 10]] Matrix in Python good references: http://stackoverflow.com/questions/16541973/print-matrix-with-indicies-python 36
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  • http://stackoverflow.com/questions/4877290/what-is-the-dict-dict-attribute-of-apython-class 38
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  • http://software-carpentry.org/v3/py04.html 45
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  • Bool True = 1 False = 0 56
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  • # Fibonacci a, b = 0, 1 while b < 1000: print b a, b = b, a +b 63
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  • What a function is Defining a function in Python Adding a docstring in Python Function execution Function Assignment Return from function Inner function Default values of function parameters Keyword argument Lambda expression 65
  • http://www.c-sharpcorner.com/UploadFile/4aac15/python-basics-understanding-thefunctions/ 66
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  • http://www.c-sharpcorner.com/UploadFile/4aac15/python-basics-understanding-thefunctions/ def functionNameHere(parameters): """place your doc string here""" #rest of the code. 68
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  • Recursion is not a best practice for automations. Most preferred way is using loops 72
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  • hi bye 80
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  • Try to see y value not having the string in the x. 84
  • This will help user when dealing with currency, Symbols, Specific Non English Languages 85
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  • The approach using string.Template is easy to learn and should be familiar to bash users. It is suitable for exposing to end-users. This style became available in Python 2.4. The percent-style will be familiar to many people coming from other programming languages. Some people find this style to be error-prone because of the trailing "s" in %(name)s, because the %-operator has the same precedence as multiplication, and because the behavior of the applied arguments depends on their data type (tuples and dicts get special handling). This style has been supported in Python since the beginning. The curly-bracket style is only supported in Python 2.6 or later. It is the most flexible style (providing a rich set of control characters and allowing objects to implement custom formatters). 88
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  • http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-189-agentle-introduction-to-programming-using-python-january-iap-2011/lectures/ 111
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  • Standard Python Modules http://www.python.org/doc/current/modindex.html PyPI: the Python Package Index : third-party Python packages. http://www.python.org/pypi 114
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  • Because Python doesn't have (and doesn't need) a formal Interface contract, the Java-style distinction between abstraction and interface doesn't exist. If someone goes through the effort to define a formal interface, it will also be an abstract class. The only differences would be in the stated intent in the docstring. And the difference between abstract and interface is a hairsplitting thing when you have duck typing. Java uses interfaces because it doesn't have multiple inheritance. 146
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  • Shape=type(“Shape”,(object,),{}) def area(): Rect=type(“Rect”,(Shape,),{l=2,b=4} 149
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  • Greedy means match longest possible string. Lazy means match shortest possible string. For example, the greedy h.+l matches 'hell' in 'hello' but the lazy h.+?l matches 'hel'. 163
  • >>> s = ‘<a href=“index.html”>HERE</a><font size=“10”>’ 164
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  • As you can see, the method split has two optional parameters. If none is given (or is None) , a string will be separated into substring using whitespaces as delimiters, i.e. every substring consisting purely of whitespaces is used as a delimiter. 181
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  • ZIP http://pythonprogramming.language-tutorial.com/2012/10/python-script-to-zip-andunzip-files.html 183
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  • Remember that print >> automatically appends an end-of-line marker Which is why the program above strips whitespace off the end of the string before printing it 189
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  • YouTube: TheMonkeyLords Tutorial: 24 >>> with open('c:/pbin/pystudent2/foo.txt','rt') as fin: ... print fin.read() ... This is testing text file new line some more text 191
  • The whence argument is optional and defaults to os.SEEK_SET or 0 (absolute file positioning); other values are os.SEEK_CUR or 1 (seek relative to the current position) and os.SEEK_END or 2 (seek relative to the file’s end). 192
  • http://pymotw.com/2/ospath/ 193
  • The CSV (comma separated value) format is a common format used for spreadsheets and databases, for importing and exporting of data. Each line or record in the file has its fields separated by a delimiter, which can be a comma, tab, etc. 194
  • This is another option for an Overview slides using transitions. http://zetcode.com/db/sqlitepythontutorial/ http://www.tutorialspoint.com/sqlite/sqlite_python.htm 195
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  • This is another option for an Overview slides using transitions. 199
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  • Set the path to this directory 206
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  • PhoneNumberField, EmailField, URLField 같이 DB차원의 Low-level ….이 아닌 사용자입장에서 모델링 가능.. 적절한 validation도 자동으로 됨 211
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  • startproject startapp settings.py, urls.py models.py 복사 manage.py syncdb manage.py runserver http://localhost:8000/admin/ 214
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  • This is another option for an Overview slides using transitions. 223
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  • http://effbot.org/zone/element-index.htm 226
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  • Add a case study or class simulation to encourage discussion and apply lessons. 233
  • Discuss outcomes of the case study or class simulation. Cover best practices. 234
  • Microsoft Engineering Excellence Microsoft Confidential 235
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  • Microsoft Engineering Excellence http://zetcode.com/db/sqlitepythontutorial/ Microsoft Confidential 237
  • Microsoft Engineering Excellence Microsoft Confidential 238
  • You can contact us by email. 239
  • Microsoft Engineering Excellence Presentation available on sildeshare and authorstream. Free to share it! Microsoft Confidential 240