Importing row from csv file but not the whole row
So I'm importing a row from a
.csv file into Python, it's going through ok but it's printing the whole row but I only need the first 15 cells down.
I'm now trying to break the script with a
while statement at column 15 but cannot think of how to word it. Can anyone point me in the right direction with this?
So far I have the following code:
import csv f=open ('example') csv_f=csv.reader(f) for row in csv_f: print(row): while condition: ...
csv_f = csv.reader(f) for line_number, row in enumerate(csv_f): if line_number >= 15: break print(row)
read.csv in R doesn't import all rows from csv file, The OP indicates that the problem is caused by quotes in the CSV-file. When the records in the CSV-file are not quoted, but only a few records Import-Csv understands the underlying structure of not just a text file but a CSV file. Since a CSV file follows a certain schema, Import-Csv understands the CSV schema. This cmdlet only reads the text file from disk but also converts the rows in the CSV file to PowerShell objects.
I would suggest you to use
pandas in this case, since you probably don't want a
DataFrame, here's how you can get a list of list:
import pandas as pd df = pd.read_csv('your_csv.csv', usecols=range(15)) mylol = df.values.tolist()
Common problems when importing or exporting respondents , If you are not confident working with CSV files we recommend you contact Do not copy the entire sheet, and do not copy any blank rows at the end of the list. The Import-Csv cmdlet creates table-like custom objects from the items in CSV files. Each column in the CSV file becomes a property of the custom object and the items in rows become the property values. Import-Csv works on any CSV file, including files that are generated by the Export-Csv cmdlet. You can use the parameters of the Import-Csv cmdlet to specify the column header row and the item
You could iterate over just the first 15 rows:
from itertools import islice for row in islice(csv_f, 15): ...
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