将 TXT 转换为 CSV python

Question

我有一个txt数据。它看起来如下

time pos
0.02 1
0.1 2
 ...

等等。所以每一行都用空格隔开。我需要将其转换为 CSV 文件。喜欢

time,pos
0.02,1
0.1,2
0.15,3

我怎样才能用 python 做到这一点？这是我尝试过的

time = []
pos = []

def get_data(filename):
    with open(filename, 'r') as csvfile:
        csvFileReader = csv.reader(csvfile)
        next(csvFileReader)
        for row in csvFileReader:
            time.append((row[0].split(' ')[0]))
            pos.append((row[1]))
    return

Answer 1

with open(filename) as infile, open('outfile.csv','w') as outfile: 
    for line in infile: 
        outfile.write(line.replace(' ',','))