[英]Python - Printing a specific pattern
我有三個列表和一個字符串變量:
var = "http:/domain.com"
directories = ['dir_A', 'dir_B', 'dir_C']
files = ['file_A', 'file_B', 'file_C']
extensions = ['ext_A', 'ext_B']
我想打印一個完全像這樣的模式:
http:/domain.com/
http:/domain.com/dir_A/
http:/domain.com/dir_A/file_A.ext_A
http:/domain.com/dir_A/file_A.ext_B
http:/domain.com/dir_A/file_B.ext_A
http:/domain.com/dir_A/file_B.ext_B
http:/domain.com/dir_A/file_C.ext_A
http:/domain.com/dir_A/file_C.ext_B
http:/domain.com/dir_A/dir_B/
http:/domain.com/dir_A/dir_B/file_A.ext_A
http:/domain.com/dir_A/dir_B/file_A.ext_B
http:/domain.com/dir_A/dir_B/file_B.ext_A
http:/domain.com/dir_A/dir_B/file_B.ext_B
http:/domain.com/dir_A/dir_B/file_C.ext_A
http:/domain.com/dir_A/dir_B/file_C.ext_B
http:/domain.com/dir_A/dir_B/dir_C/
http:/domain.com/dir_A/dir_B/dir_C/file_A.ext_A
http:/domain.com/dir_A/dir_B/dir_C/file_A.ext_B
http:/domain.com/dir_A/dir_B/dir_C/file_B.ext_A
http:/domain.com/dir_A/dir_B/dir_C/file_B.ext_B
http:/domain.com/dir_A/dir_B/dir_C/file_C.ext_A
http:/domain.com/dir_A/dir_B/dir_C/file_C.ext_B
http:/domain.com/dir_A/dir_C/
http:/domain.com/dir_A/dir_C/file_A.ext_A
http:/domain.com/dir_A/dir_C/file_A.ext_B
http:/domain.com/dir_A/dir_C/file_B.ext_A
http:/domain.com/dir_A/dir_C/file_B.ext_B
http:/domain.com/dir_A/dir_C/file_C.ext_A
http:/domain.com/dir_A/dir_C/file_C.ext_B
http:/domain.com/dir_A/dir_C/dir_B/
http:/domain.com/dir_A/dir_C/dir_B/file_A.ext_A
http:/domain.com/dir_A/dir_C/dir_B/file_A.ext_B
http:/domain.com/dir_A/dir_C/dir_B/file_B.ext_A
http:/domain.com/dir_A/dir_C/dir_B/file_B.ext_B
http:/domain.com/dir_A/dir_C/dir_B/file_C.ext_A
http:/domain.com/dir_A/dir_C/dir_B/file_C.ext_B
這僅適用於http:/domain.com/dir_A/...
兒子的情況http:/domain.com/dir_B/...
和http:/domain.com/dir_C/...
我已經嘗試過自己,但未能成功實現所需的模式
任何幫助將不勝感激
您將需要來自itertools
模塊的combinations
、 permutations
和product
來獲得所有這些變體:
from itertools import permutations, combinations, product
def combine(dom, dirs, files, exts):
return ('/'.join((dom, *perm, f"{f}.{e}"))
for i in range(len(dirs)+1)
for comb in combinations(dirs, i)
for perm in permutations(comb)
for f, e in product(files, exts))
for x in combine(var, directories, files, extensions):
print(x)
Output(總共 96 個;請注意,我將所有\
更改為/
並更改了域):
http://example.com/file_A.ext_A
...
http://example.com/dir_A/dir_C/file_C.ext_B
...
http://example.com/dir_C/dir_B/dir_A/file_C.ext_B
如果您想自己實現生成目錄的各種排列,您可以使用遞歸 function。 獲得目錄后,文件和擴展名就很簡單了。
#!/usr/bin/env python
var = "http:/domain.com"
directories = ["dir_A", "dir_B", "dir_C"]
files = ["file_A", "file_B", "file_C"]
extensions = ["ext_A", "ext_B"]
root = var + '/'
def combos(dirs):
if len(dirs) == 1:
return [dirs[:]]
else:
c = []
for i in range(len(dirs)):
c.append([dirs[i]])
c.extend([[dirs[i]] + combo
for combo in combos(dirs[:i] + dirs[i+1:])])
return c
print(root)
for combo in combos(directories):
prefix = root + ''.join([d + '/' for d in combo])
print('\n' + prefix)
for file in files:
for ext in extensions:
print(prefix + file + '.' + ext)
output:
http:/domain.com/
http:/domain.com/dir_A/
http:/domain.com/dir_A/file_A.ext_A
http:/domain.com/dir_A/file_A.ext_B
http:/domain.com/dir_A/file_B.ext_A
http:/domain.com/dir_A/file_B.ext_B
http:/domain.com/dir_A/file_C.ext_A
http:/domain.com/dir_A/file_C.ext_B
http:/domain.com/dir_A/dir_B/
http:/domain.com/dir_A/dir_B/file_A.ext_A
http:/domain.com/dir_A/dir_B/file_A.ext_B
http:/domain.com/dir_A/dir_B/file_B.ext_A
http:/domain.com/dir_A/dir_B/file_B.ext_B
http:/domain.com/dir_A/dir_B/file_C.ext_A
http:/domain.com/dir_A/dir_B/file_C.ext_B
http:/domain.com/dir_A/dir_B/dir_C/
http:/domain.com/dir_A/dir_B/dir_C/file_A.ext_A
http:/domain.com/dir_A/dir_B/dir_C/file_A.ext_B
http:/domain.com/dir_A/dir_B/dir_C/file_B.ext_A
http:/domain.com/dir_A/dir_B/dir_C/file_B.ext_B
http:/domain.com/dir_A/dir_B/dir_C/file_C.ext_A
http:/domain.com/dir_A/dir_B/dir_C/file_C.ext_B
http:/domain.com/dir_A/dir_C/
http:/domain.com/dir_A/dir_C/file_A.ext_A
http:/domain.com/dir_A/dir_C/file_A.ext_B
http:/domain.com/dir_A/dir_C/file_B.ext_A
http:/domain.com/dir_A/dir_C/file_B.ext_B
http:/domain.com/dir_A/dir_C/file_C.ext_A
http:/domain.com/dir_A/dir_C/file_C.ext_B
http:/domain.com/dir_A/dir_C/dir_B/
http:/domain.com/dir_A/dir_C/dir_B/file_A.ext_A
http:/domain.com/dir_A/dir_C/dir_B/file_A.ext_B
http:/domain.com/dir_A/dir_C/dir_B/file_B.ext_A
http:/domain.com/dir_A/dir_C/dir_B/file_B.ext_B
http:/domain.com/dir_A/dir_C/dir_B/file_C.ext_A
http:/domain.com/dir_A/dir_C/dir_B/file_C.ext_B
http:/domain.com/dir_B/
http:/domain.com/dir_B/file_A.ext_A
http:/domain.com/dir_B/file_A.ext_B
http:/domain.com/dir_B/file_B.ext_A
http:/domain.com/dir_B/file_B.ext_B
http:/domain.com/dir_B/file_C.ext_A
http:/domain.com/dir_B/file_C.ext_B
http:/domain.com/dir_B/dir_A/
http:/domain.com/dir_B/dir_A/file_A.ext_A
http:/domain.com/dir_B/dir_A/file_A.ext_B
http:/domain.com/dir_B/dir_A/file_B.ext_A
http:/domain.com/dir_B/dir_A/file_B.ext_B
http:/domain.com/dir_B/dir_A/file_C.ext_A
http:/domain.com/dir_B/dir_A/file_C.ext_B
http:/domain.com/dir_B/dir_A/dir_C/
http:/domain.com/dir_B/dir_A/dir_C/file_A.ext_A
http:/domain.com/dir_B/dir_A/dir_C/file_A.ext_B
http:/domain.com/dir_B/dir_A/dir_C/file_B.ext_A
http:/domain.com/dir_B/dir_A/dir_C/file_B.ext_B
http:/domain.com/dir_B/dir_A/dir_C/file_C.ext_A
http:/domain.com/dir_B/dir_A/dir_C/file_C.ext_B
http:/domain.com/dir_B/dir_C/
http:/domain.com/dir_B/dir_C/file_A.ext_A
http:/domain.com/dir_B/dir_C/file_A.ext_B
http:/domain.com/dir_B/dir_C/file_B.ext_A
http:/domain.com/dir_B/dir_C/file_B.ext_B
http:/domain.com/dir_B/dir_C/file_C.ext_A
http:/domain.com/dir_B/dir_C/file_C.ext_B
http:/domain.com/dir_B/dir_C/dir_A/
http:/domain.com/dir_B/dir_C/dir_A/file_A.ext_A
http:/domain.com/dir_B/dir_C/dir_A/file_A.ext_B
http:/domain.com/dir_B/dir_C/dir_A/file_B.ext_A
http:/domain.com/dir_B/dir_C/dir_A/file_B.ext_B
http:/domain.com/dir_B/dir_C/dir_A/file_C.ext_A
http:/domain.com/dir_B/dir_C/dir_A/file_C.ext_B
http:/domain.com/dir_C/
http:/domain.com/dir_C/file_A.ext_A
http:/domain.com/dir_C/file_A.ext_B
http:/domain.com/dir_C/file_B.ext_A
http:/domain.com/dir_C/file_B.ext_B
http:/domain.com/dir_C/file_C.ext_A
http:/domain.com/dir_C/file_C.ext_B
http:/domain.com/dir_C/dir_A/
http:/domain.com/dir_C/dir_A/file_A.ext_A
http:/domain.com/dir_C/dir_A/file_A.ext_B
http:/domain.com/dir_C/dir_A/file_B.ext_A
http:/domain.com/dir_C/dir_A/file_B.ext_B
http:/domain.com/dir_C/dir_A/file_C.ext_A
http:/domain.com/dir_C/dir_A/file_C.ext_B
http:/domain.com/dir_C/dir_A/dir_B/
http:/domain.com/dir_C/dir_A/dir_B/file_A.ext_A
http:/domain.com/dir_C/dir_A/dir_B/file_A.ext_B
http:/domain.com/dir_C/dir_A/dir_B/file_B.ext_A
http:/domain.com/dir_C/dir_A/dir_B/file_B.ext_B
http:/domain.com/dir_C/dir_A/dir_B/file_C.ext_A
http:/domain.com/dir_C/dir_A/dir_B/file_C.ext_B
http:/domain.com/dir_C/dir_B/
http:/domain.com/dir_C/dir_B/file_A.ext_A
http:/domain.com/dir_C/dir_B/file_A.ext_B
http:/domain.com/dir_C/dir_B/file_B.ext_A
http:/domain.com/dir_C/dir_B/file_B.ext_B
http:/domain.com/dir_C/dir_B/file_C.ext_A
http:/domain.com/dir_C/dir_B/file_C.ext_B
http:/domain.com/dir_C/dir_B/dir_A/
http:/domain.com/dir_C/dir_B/dir_A/file_A.ext_A
http:/domain.com/dir_C/dir_B/dir_A/file_A.ext_B
http:/domain.com/dir_C/dir_B/dir_A/file_B.ext_A
http:/domain.com/dir_C/dir_B/dir_A/file_B.ext_B
http:/domain.com/dir_C/dir_B/dir_A/file_C.ext_A
http:/domain.com/dir_C/dir_B/dir_A/file_C.ext_B
我猜您想要正斜杠,但我按照您的要求對其進行了編碼。 您忘記在提示中引用一些字符串。
#!/usr/bin/env python3
import itertools
var = "http:/domain.com"
directories = ["dir_A", "dir_B", "dir_C"]
files = ["file_A", "file_B", "file_C"]
extensions = ["ext_A", "ext_B"]
print(var + "/")
print()
for dir in directories:
print(var + "/" + dir + "/")
for i in list(itertools.product(files, extensions)):
print("%s/%s/%s.%s" % (var, dir, i[0], i[1]))
print()
您可以執行以下操作:
from itertools import product
var = "http:\\\\domain.com"
directories = ["dir_A", "dir_B", "dir_C"]
files = ["file_A", "file_B", "file_C"]
extensions = ["ext_A", "ext_B"]
nestDir = ""
for directory in directories:
nestDir = nestDir + "\\\\" + directory
for file, ext in product(files, extensions):
print(var + nestDir + "\\\\" + file + "." + ext)
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