Question

我有一个包含以下格式数据的文件：

abc 123 456
cde 45 32
efg 322 654
abc 445 856
cde 65 21
efg 147 384
abc 815 078
efg 843 286
等等。如何使用Python将其转换为以下格式：

abc 123 456 cde 45 32 efg 322 654
abc 445 856 cde 65 21 efg 147 348
abc 815 078 efg 843 286
此外，如果在abc之后缺少cde，则应该插入空格，因为它是固定宽度的文件。使用open（＆＃39; abc.txt＆＃39;）作为文件：对于file.readlines（）中的行而行[：3] ==＆＃39; abc＆＃39; lines.replace（＆＃39; \ n＆＃39;＆＃39;＆＃39）

我是python的新手，非常感谢这方面的帮助!!

Answer 1

@ Ritesh1111，即使你是新人，你也应该开始尝试。尝试使用以下代码进行少量假设，可能不是100％准确，但您可以从这里开始：

with open('abc.txt') as rd:
    data = rd.readlines()

full_detail={}
seq=['abc', 'cde', 'efg']  # Assuming the order of the sequences, also 1st must be present.   
for row in seq:
    full_detail[row] = []
last_processed = None

def get_next_seq_pos(last_seq_postition, seq):
    return last_seq_postition+1 if last_seq_postition < len(seq) - 1 else 0

for line in data:
    cline = line.strip().split(" ")
    if last_processed is None:
        data_seq_postition = seq.index(cline[0].strip())
        temp_data = " ".join([str(i) for i in cline[1:]])
        full_detail[seq[data_seq_postition]].append(temp_data)
        last_processed = seq[data_seq_postition]
    else:
        last_seq_postition = seq.index(last_processed)
        data_seq_postition = seq.index(cline[0].strip())
        next_seq_postition = get_next_seq_pos(last_seq_postition, seq)
        while(next_seq_postition != data_seq_postition):
            full_detail[seq[next_seq_postition]].append("   ")
            last_processed = seq[next_seq_postition]
            last_seq_postition = seq.index(last_processed)
            next_seq_postition = get_next_seq_pos(last_seq_postition, seq)
        full_detail[seq[data_seq_postition]].append(" ".join([str(i) for i in cline[1:]]))
        last_processed = seq[data_seq_postition]

data_length = len(full_detail[seq[0]])
for i in range(0,data_length):
    for row in seq:
        print row, full_detail[row][i],
    print

输出

abc 123 456 cde 45 32 efg 322 654

abc 445 856 cde 65 21 efg 147 384

abc 815 078 cde。。 efg 843 286

Python脚本根据特定标准进行转置

1 个答案:

输出