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如何使用python将列表中的子字符串与另一个列表进行比较

list python

Auto-learner · 技术社区 · 7 年前

球门

我试图获取文件夹中是否存在以dmaddleware开头的文件名,实际文件名类似于dmaddleware10.20.20.jar。我想检查列表(预期列表和实际列表)中是否存在子字符串dmaddleware

问题

有没有人能给我举个例子,或者如何做到这一点。提前谢谢。

actual_file_names = ['', 'python', 'cmdb_dma_map.json', 'mappings.json', 'vendor_provided_binaries.json',
                     'vendor_provided_binaries_custom.json', 'DMAPremiumDatabase10.50.000.000.jar',
                     'DMAPremiumMiddleware10.50.000.000.jar', 'DMAPremiumUtilities10.50.000.000.jar',
                     'dma_oo_client_bin_linux.zip', 'dma_oo_client_bin_linux.zip.MD5', 'dma_oo_client_code_linux.zip',
                     'dma_oo_client_code_linux.zip.MD5', 'DCAFlowUtilities1.0.0.0.jar', 'DCAKafkaWriter1.0.0.0.jar',
                     'DCAUtilities1.0.0.0.jar']

expected_file_names = ['python', 'cmdb_dma_map.json', 'mappings.json', 'vendor_provided_binaries.json',
                       'vendor_provided_binaries_custom.json', 'DMAPremiumDatabase.jar', 'DMAPremiumMiddleware.jar',
                       'DMAPremiumUtilities.jar']

for f in expected_file_names:
    for g in actual_file_names:
        if f in g:
            print "All file names exists in " + g

        else:
            print "file name "+g+" doesn't exists"

2 回复 | 直到 7 年前

Ekaba Bisong 7 年前

import re

actual_file_names = ['', 'python', 'cmdb_dma_map.json', 'mappings.json', 
                     'vendor_provided_binaries.json',
                     'vendor_provided_binaries_custom.json', 
                     'DMAPremiumDatabase10.50.000.000.jar',
                     'DMAPremiumMiddleware10.50.000.000.jar', 
                     'DMAPremiumUtilities10.50.000.000.jar',
                     'dma_oo_client_bin_linux.zip', 
                     'dma_oo_client_bin_linux.zip.MD5', 
                     'dma_oo_client_code_linux.zip',
                     'dma_oo_client_code_linux.zip.MD5', 
                     'DCAFlowUtilities1.0.0.0.jar', 'DCAKafkaWriter1.0.0.0.jar',
                     'DCAUtilities1.0.0.0.jar']

expected_file_names = ['python', 'cmdb_dma_map.json', 'mappings.json', 
                       'vendor_provided_binaries.json',
                       'vendor_provided_binaries_custom.json', 
                       'DMAPremiumDatabase.jar', 'DMAPremiumMiddleware.jar',
                       'DMAPremiumUtilities.jar']


##compare everything after first period:
for expected in expected_file_names:
    part = expected.split('.',1)[0]
    ##print(part)
    matched = False
    for actual in actual_file_names:
        if part in actual:
            print('{} matches {}'.format(expected,actual))
            matched = True

    if not matched:
        print('{} could not be matched'.format(expected))

print('-'*50)

##remove also numbers
for expected in expected_file_names:
    part = re.sub('[0123456789]','',expected.split('.',1)[0])
    ##print(part)
    matched = False
    for actual in actual_file_names:
        if part in actual:
            print('{} matches {}'.format(expected,actual))
            matched = True

    if not matched:
        print('{} could not be matched'.format(expected))

结果是:

python matches python
cmdb_dma_map.json matches cmdb_dma_map.json
mappings.json matches mappings.json
vendor_provided_binaries.json matches vendor_provided_binaries.json
vendor_provided_binaries.json matches vendor_provided_binaries_custom.json
vendor_provided_binaries_custom.json matches vendor_provided_binaries_custom.json
DMAPremiumDatabase.jar matches DMAPremiumDatabase10.50.000.000.jar
DMAPremiumMiddleware.jar matches DMAPremiumMiddleware10.50.000.000.jar
DMAPremiumUtilities.jar matches DMAPremiumUtilities10.50.000.000.jar
--------------------------------------------------
python matches python
cmdb_dma_map.json matches cmdb_dma_map.json
mappings.json matches mappings.json
vendor_provided_binaries.json matches vendor_provided_binaries.json
vendor_provided_binaries.json matches vendor_provided_binaries_custom.json
vendor_provided_binaries_custom.json matches vendor_provided_binaries_custom.json
DMAPremiumDatabase.jar matches DMAPremiumDatabase10.50.000.000.jar
DMAPremiumMiddleware.jar matches DMAPremiumMiddleware10.50.000.000.jar
DMAPremiumUtilities.jar matches DMAPremiumUtilities10.50.000.000.jar

Arockia 7 年前

actual_file_names = ['', 'python', 'cmdb_dma_map.json', 'mappings.json', 'vendor_provided_binaries.json',
                     'vendor_provided_binaries_custom.json', 'DMAPremiumDatabase10.50.000.000.jar',
                     'DMAPremiumMiddleware10.50.000.000.jar', 'DMAPremiumUtilities10.50.000.000.jar',
                     'dma_oo_client_bin_linux.zip', 'dma_oo_client_bin_linux.zip.MD5', 'dma_oo_client_code_linux.zip',
                     'dma_oo_client_code_linux.zip.MD5', 'DCAFlowUtilities1.0.0.0.jar', 'DCAKafkaWriter1.0.0.0.jar',
                     'DCAUtilities1.0.0.0.jar']

expected_file_names = ['python', 'cmdb_dma_map.json', 'mappings.json', 'vendor_provided_binaries.json',
                       'vendor_provided_binaries_custom.json', 'DMAPremiumDatabase.jar', 'DMAPremiumMiddleware.jar',
                       'DMAPremiumUtilities.jar']

# 1'st way
print [str(afn)+" is valid" if any(efn.split(".")[0] in afn for efn in expected_file_names) else str(afn)+"N/A" for afn in actual_file_names]

# 2'nd way
for efn in expected_file_names:
    for afn in actual_file_names:
        if efn.split(".")[0] in afn:
            print afn

输出:

['N/A', 'python is valid', 'cmdb_dma_map.json is valid', 'mappings.json is valid', 'vendor_provided_binaries.json is valid', 'vendor_provided_binaries_custom.json is valid', 'DMAPremiumDatabase10.50.000.000.jar is valid', 'DMAPremiumMiddleware10.50.000.000.jar is valid', 'DMAPremiumUtilities10.50.000.000.jar is valid', 'dma_oo_client_bin_linux.zipN/A', 'dma_oo_client_bin_linux.zip.MD5N/A', 'dma_oo_client_code_linux.zipN/A', 'dma_oo_client_code_linux.zip.MD5N/A', 'DCAFlowUtilities1.0.0.0.jarN/A', 'DCAKafkaWriter1.0.0.0.jarN/A', 'DCAUtilities1.0.0.0.jarN/A']
python
cmdb_dma_map.json
mappings.json
vendor_provided_binaries.json
vendor_provided_binaries_custom.json
vendor_provided_binaries_custom.json
DMAPremiumDatabase10.50.000.000.jar
DMAPremiumMiddleware10.50.000.000.jar
DMAPremiumUtilities10.50.000.000.jar