Python sys.argv和带有定义的输入组合不起作用

Question

我有一个类似下面的python脚本，我试图在shell中运行它。我想使用argv或input来提供称为index1和index2(ACCGTCG和TTCCAGC(的特定输入以及要处理的文件名。我尝试了两种方法(分别使用sys.argv和input(，如下所示，但没有得到任何输出。

使用sys.argv:

#!/usr/bin/python
import sys
from Bio import SeqIO
def dual_index_positions():
script=sys.argv[0]
index1=sys.argv[1]
index2=sys.argv[2]
input_file=sys.argv[3]
count=0 
with open(input_file, "r") as Fastq:
for record in SeqIO.parse(Fastq,'fastq'): 
if index1 in record.seq and index2 in record.seq: 
print(record.name)
ind1_rec=record.seq.find(index1) 
ind2_rec=record.seq.find(index2)
rp_ind2=ind2_rec+len(index2)
dist=(ind1_rec)-(rp_ind2)
print('Index1 and index2 positions are '+ str(ind1_rec+1) + ' and ' + str(ind2_rec+1) + ' respectively' +
'; distance is: ' + str(dist))
count+=1
print('The total number of hits is: '+ str(count))


if __name__ == '__dual_index_positions__':
dual_index_positions()

带输入：

#!/usr/bin/python
from Bio import SeqIO 
def dual_index_positions(): 
input_file=input('please enter your input_file: ')
index1=str(input('please enter your index 1: '))
index2=str(input('please enter your index 2: '))
count=0 
with open(input_file, "r") as Fastq:
for record in SeqIO.parse(Fastq,'fastq'):
if index1 in record.seq and index2 in record.seq: 
print(record.name)
ind1_rec=record.seq.find(index1) 
ind2_rec=record.seq.find(index2)
rp_ind2=ind2_rec+len(index2)
dist=(ind1_rec)-(rp_ind2)
print('Index1 and index2 positions are '+ str(ind1_rec+1) + ' and ' + str(ind2_rec+1) + ' respectively' +
'; distance is: ' + str(dist))
count+=1
print('The total number of hits is: '+ str(count))


if __name__ == '__dual_index_positions__':
dual_index_positions()

有人能帮我找到虫子在哪里吗？提前谢谢。

Answer 1

而不是这个

if __name__ == '__dual_index_positions__':
dual_index_positions()

使用此

if __name__ == '__main__':
dual_index_positions()

__name__ == '__dual_index_positions__'的RHS不是您必须调用的函数名，这是模块的名称，默认情况下它的值为__main__