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

f = open(fname,'r')
lines = f.readlines()[1:]
f.close()

f = open(fname).readlines()
firstLine = f.pop(0) #removes the first line
for line in f:
    ...

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

如果你想要第一行，然后你想对文件执行一些操作，这段代码将会很有帮助。

with open(filename , 'r') as f:
    first_line = f.readline()
    for line in f:
            # Perform some operations

# 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)