帮我写一个python脚本输入文件格式分隔符t四列内容分别是chrstartendsnpnumber没有表头。现在需要获得多个这样的输入文件文件中全部重叠的染色体区间输出结果中注明一下查找到的重复区间具体在那两个或几个文件中。

以下是一个可能的Python脚本，它可以读取多个输入文件，并查找所有重叠的染色体区间：

import sys

# Define a function to parse a line from the input files
def parse_line(line):
    fields = line.strip().split('\t')
    return (fields[0], int(fields[1]), int(fields[2]), int(fields[3]))

# Define a function to compare two intervals
def overlap(a, b):
    return a[0] == b[0] and a[1] <= b[2] and a[2] >= b[1]

# Define a function to find overlaps between two lists of intervals
def find_overlaps(intervals1, intervals2):
    overlaps = []
    for interval1 in intervals1:
        for interval2 in intervals2:
            if overlap(interval1, interval2):
                overlaps.append((interval1, interval2))
    return overlaps

# Read the input files and collect the intervals
intervals_by_file = {}
for filename in sys.argv[1:]:
    intervals = []
    with open(filename) as f:
        for line in f:
            interval = parse_line(line)
            intervals.append(interval)
    intervals_by_file[filename] = intervals

# Find overlaps between all pairs of files
overlaps_by_file_pair = {}
for i, (filename1, intervals1) in enumerate(intervals_by_file.items()):
    for j, (filename2, intervals2) in enumerate(intervals_by_file.items()):
        if i < j:
            overlaps = find_overlaps(intervals1, intervals2)
            if overlaps:
                overlaps_by_file_pair[(filename1, filename2)] = overlaps

# Print the results
for (filename1, filename2), overlaps in overlaps_by_file_pair.items():
    print(f"Overlaps between {filename1} and {filename2}:")
    for interval1, interval2 in overlaps:
        print(f"  {interval1[0]}:{interval1[1]}-{interval1[2]} (in {filename1})")
        print(f"  {interval2[0]}:{interval2[1]}-{interval2[2]} (in {filename2})")

这个脚本可以接受多个文件名作为命令行参数，并且假设所有这些文件都使用相同的分隔符（本例中为制表符）。它会将每个文件中的每个行解析为一个四元组（染色体名称、起始位置、终止位置和SNP编号），然后找到所有重叠的区间，并打印出它们所在的文件和位置。

要运行这个脚本，请将其保存为文件（例如overlap.py），然后在命令行中使用以下命令：

python overlap.py file1.txt file2.txt file3.txt ...

其中“file1.txt”、“file2.txt”等是要处理的输入文件名。脚本将打印出所有重叠的染色体区间，以及它们在哪些文件中找到。