我如何跳过标题行并开始从第2行读取文件?


当前回答

如果您想从第2行开始读取多个CSV文件,这就像一个魅力

for files in csv_file_list:
        with open(files, 'r') as r: 
            next(r)                  #skip headers             
            rr = csv.reader(r)
            for row in rr:
                #do something

(这是Parfait对另一个问题的部分回答)

其他回答

f = open(fname).readlines()
firstLine = f.pop(0) #removes the first line
for line in f:
    ...
with open(fname) as f:
    next(f)
    for line in f:
        #do something
f = open(fname,'r')
lines = f.readlines()[1:]
f.close()

如果切片可以在迭代器上工作……

from itertools import islice
with open(fname) as f:
    for line in islice(f, 1, None):
        pass
# Open a connection to the file
with open('world_dev_ind.csv') as file:

    # Skip the column names
    file.readline()

    # Initialize an empty dictionary: counts_dict
    counts_dict = {}

    # Process only the first 1000 rows
    for j in range(0, 1000):

        # Split the current line into a list: line
        line = file.readline().split(',')

        # Get the value for the first column: first_col
        first_col = line[0]

        # If the column value is in the dict, increment its value
        if first_col in counts_dict.keys():
            counts_dict[first_col] += 1

        # Else, add to the dict and set value to 1
        else:
            counts_dict[first_col] = 1

# Print the resulting dictionary
print(counts_dict)