Commit aeae507

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Merge pull request #2 from Mahmoud-alzoubi95/write_on_csv_files

add write to csv file feature

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`@@ -1,10 +1,15 @@`
`1`	`1`	`# Reading and Writing a CSV File`
`2`		`-There are various ways to read a CSV file that uses either the CSV module or the pandas library.`
	`2`	`+*There are various ways to read a CSV file that uses either the CSV module or the pandas library.`
`3`	`3`
`4`	`4`	`- csv Module: The CSV module is one of the modules in Python which provides classes for reading and writing tabular information in CSV file format.`
`5`	`5`
`6`	`6`	`- pandas Library: The pandas library is one of the open-source Python libraries that provide high-performance, convenient data structures and data analysis tools and techniques for Python programming.`
`7`	`7`
`8`	`8`	`* Read using csv.DictReader() class: the CSV file is first opened using the open() method then it is read by using the DictReader class of csv module which works like a regular reader but maps the information in the CSV file into a dictionary. The very first line of the file consists of dictionary keys.`
`9`	`9`
	`10`	`+* There are various classes provide by csv module for writting to csv:`
	`11`	`+- using csv.writer class`
	`12`	`+- using csv.DictWritter class`
`10`	`13`
	`14`	`+* Write using cvs.DictWritter() class: this class returns a writer object which maps directories onto output rows.`
	`15`	`+`

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`1`		`-John,Doe,120 jefferson st.,Riverside, NJ, 08075`
`2`		`-Jack,McGinnis,220 hobo Av.,Phila, PA,09119`
`3`		`-"John ""Da Man""",Repici,120 Jefferson St.,Riverside, NJ,08075`
`4`		`-Stephen,Tyler,"7452 Terrace ""At the Plaza"" road",SomeTown,SD, 91234`
`5`		`-,Blankman,,SomeTown, SD, 00298`
`6`		`-"Joan ""the bone"", Anne",Jet,"9th, at Terrace plc",Desert City,CO,00123`

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	`1`	`+import csv`
	`2`	`+`
	`3`	`+`
	`4`	`+def write_to_csv_files_using_DictWriter_class(data,fields,filename):`
	`5`	`+`
	`6`	`+ with open(filename, 'w') as csvfile:`
	`7`	`+ # creating a csv dict writer object`
	`8`	`+ writer = csv.DictWriter(csvfile, fieldnames = fields)`
	`9`	`+`
	`10`	`+ # writing headers (field names)`
	`11`	`+ writer.writeheader()`
	`12`	`+`
	`13`	`+ # writing data rows`
	`14`	`+ writer.writerows(data)`
	`15`	`+`
	`16`	`+`
	`17`	`+`
	`18`	`+if __name__=="__main__":`
	`19`	`+ # my data rows as dictionary objects`
	`20`	`+ mydata =[{'name': 'Noura', 'course': 'python40python401'},`
	`21`	`+ {'name': 'Mahmoud', 'course': 'python401'},`
	`22`	`+ {'name': 'Nizar', 'course': 'python401'},`
	`23`	`+ {'name': 'Raneem', 'course': 'python401'},`
	`24`	`+ {'name': 'Omer', 'course': 'python401'}, ]`
	`25`	`+`
	`26`	`+ # field names`
	`27`	`+ fields = ['name','course']`
	`28`	`+`
	`29`	`+ # name of csv file`
	`30`	`+ filename = "CSV_files/assets/course_name.csv"`
	`31`	`+`
	`32`	`+ # writing to csv file`
	`33`	`+ print(write_to_csv_files_using_DictWriter_class(mydata,fields,filename))`

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