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Questions about the Python CSV file to read and write

Time:10-01

Who can tell me what is the 'egg. CSV' inside? Is the file name? Or a relative path? Or what else
By the way, hope someone can provide a file teach me how to use Python for CSV file reading and writing (the more detailed, the better)
Thank you all fellows in the

CodePudding user response:

According to the code, dense eggs. CSV is the CSV file name in the current directory,

You can also use the specified path
With the open (' d:/dense eggs. CSV. Newlinge=") as csvfile:


Python read CSV
One kind of method is commonly used

1, using the open method

Data_file=open (' data. CSV ', 'r')
Data_list=data_file. Readlines ()

2, the import CSV
Your example

3, pandas. Read_csv

To do after read CSV analysis statistics, then suggest directly use 3 kinds of methods, direct read in pd



All code, baidu search, more is,

CodePudding user response:

The import CSV
# reference CSV module,
Csv_file=open (' demo. CSV ', 'w', newline=', encoding="utf-8")
# call open () function opens the CSV file, the incoming parameters: the name of the file "demo. CSV", "w" write mode, newline=', encoding="utf-8",
Writer.=the CSV writer (csv_file)
# use CSV. Writer () function creates a writer object,
Writer. Writerow ([' movie ', 'douban score'])
# call object writer writerow () method, can write a line of text in the CSV file "film" and "douban score,"
Writer. Writerow ([' galactic guards', '8.0'])
# in the CSV file is written to one line of text "galaxy convoy" and "8.0",
Writer. Writerow ([' avengers alliance ', '8.1'])
# in the CSV file is written to one line of text "avengers alliance" and "8.1",
Csv_file. Close ()
# write complete, close the file you're done!

reference
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