Python Pandas Replacing Header with Top Row, new_header = df.iloc[0] #grab the first row for the header df = df[1:] #take the data less the header row df.columns = new_header #set the Insert a new set of headers in a df but preserve the existing headers and set them to the first row of data 0 Manually set the keys in Pandas DataFrame built with read_csv df.to_csv(newformat,header=1) Notice the header value: Header refer to the Row number(s) to use as the column names. By default when you import a file, pandas considers the first row as the header i.e., index=0. Replace the header value with the first row’s values # Create a new variable called 'header' from the first row of the dataset header = df. It has header names inside of its data. Pandas set header row. df. The data I have to work with is a bit messy.. You just need to mention the filename. Delphi queries related to “make first row the column headers pandas” set first row as column names in pandas; switch datafram colum headers to rows; pandas use first row as column names; set row as column names; pandas set row 1 as header; transform row 1 into header pandas; python use row values as header; pandas column names as row Note that we turn off # the default header and skip one row to allow us to insert a user defined # header. It assumes you have column names in first row of your CSV file. To consider 2 nd row as index, you will have to change this index to 1. This way, you will get the column name you want and won’t have to write additional codes or create new df. Python Pandas Replacing Header with Top Row, new_header = df.iloc[0] #grab the first row for the header df = df[1:] #take the data less the header row df.columns = new_header #set the Header refer to the Row number(s) to use as the column names. mydata = pd.read_csv("workingfile.csv") It stores the data the way It should be as we have headers in the first row … How can I choose a row from an existing pandas dataframe and make it (rename it to) a column header? Prevent pandas read_csv treating first row as header of column names, As we've seen that the first row is always considered as column headers, however, it's possible to have more than one row as column headers by specifying a parameter called header= in read_csv() function. Refer to the below code: dbfile = pd.read_csv('Diabetes.csv', header=1) Chris Albon. But that’s not the row that contains column names. Therefore head() function returned first 5 lines of the dataframe. Make no mistake, the row number is not the df but from the excel file(0 is the first row, 1 is the second and so on). First 5 rows of the Dataframe : Name Age City Experience a jack 34 Sydney 5 b Riti 31 Delhi 7 c Aadi 16 Tokyo 9 d Sunil 41 Delhi 12 e Veena 33 Delhi 4 As we didn’t provide the argument n, whose default value is 5. Rename column headers in pandas. As we saw in first example taht while reading users.csv on skipping 3 lines from top will make 3rd line as header row. Replace header with first row pandas. ExcelWriter ("pandas_header_format.xlsx", engine = 'xlsxwriter') # Convert the dataframe to an XlsxWriter Excel object. I want to do something like: header = df[df['old_header_name1'] == 'new_header_name1'] df.columns = header Example 1 : Read CSV file with header row It's the basic syntax of read_csv() function. 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