b holds the contents of a csv file
i need to go through every row of b; however, since it has a header, i dont want to pay attention to the header. how do i start from the second row?
for row in b (starting from the second row!!):
Step 1: In order to read rows in Python, First, we need to load the CSV file in one object. So to load the csv file into an object use open() method. Step 2: Create a reader object by passing the above-created file object to the reader function. Step 3: Use for loop on reader object to get each row.
Open your CSV file in append mode Create a file object for this file. Pass the file object and a list of column names to DictWriter() You will get an object of DictWriter. Pass the dictionary as an argument to the writerow() function of DictWriter (it will add a new row to the CSV file).
In order to iterate over rows, we can use three function iteritems(), iterrows(), itertuples() . These three function will help in iteration over rows.
Reading and Writing CSV Files Reader() and the second uses csv. DictReader() . csv. Reader() allows you to access CSV data using indexes and is ideal for simple CSV files.
Prepend a next(b)
(in every recent version of Python; b.next()
in older ones) to skip the first row (if b
is an iterator; if it is, instead, a list, for row in b[1:]:
, of course).
b.next()
for row in b:
# do something with row
But consider using the csv module, especially with DictReader.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With