将数据集导出到python中的文本文件

Question

I have a list like this example:

mylist = ['chr10 30930000 32110000 ARHGAP12,PFKP,ZEB1,ZNF438 4', 'chr15 76430000 77240000 ETFA,ISL2, 4']

I am trying to export it into a text file . in fact every string would be one line and every line would have 5 columns . every space separated part in every string would be one column . so, in column 4 there are some comma separated characters and they will be in the same column . and the file would be tab separated .

for the example, the expected output would look like this:

chr10   30930000    32110000    ARHGAP12,PFKP,ZEB1,ZNF438   4
chr15   76430000    77240000    ETFA,ISL2   4

i am doing that in python using the following code:

with open('outfile.txt', "w") as f:
    for item in mylist:
        f.write("%s\n" % item+ '\t')

but it does not return exactly what i want. do you know how to fix it?

Answer 1

Instead of:

f.write("%s\n" % item+ '\t')

Join by tabs after splitting by whitespace:

f.write('\t'.join(item.split()) + '\n)

Answer 2

This should be fairly simple as follows -

aa=['chr10 30930000 32110000 ARHGAP12,PFKP,ZEB1,ZNF438 4', 'chr15 76430000 77240000 ETFA,ISL2, 4']
with open("aa.txt","w") as wr:
    for item in aa:
        wr.write("\t".join(item.split(" ")) + "\n")

Answer 3

Each of your item is a string eg 'chr10 30930000 32110000 ARHGAP12,PFKP,ZEB1,ZNF438 4' . I think you'd like to convert the spaces between each column values to tabs. To achive that you should add another nested loop. Something like this:

with open('outfile.txt', "w") as f:
    for line in mylist:
        for item in line.split(' '):
            f.write(item + '\t')
        f.write("\n")