Python 编辑列表以删除已定义的变量以及字符后面的所有内容（包括字符）

我有以下设置：

variable = /XXX/XXX/XXX/
list = [/XXX/XXX/XXX/INFO_RANDOM_STRING_HERE.file, etc...]

我想复制列表，但要修剪起始变量，以及除“INFO”段以外的所有内容（即，在随机之前和之后的所有内容）。信息每次都不同，这里的随机字符串也不同，但变量是常量

我怎样才能做到这一点

为了澄清，我有：

variable = /users/me/folder/
list = [/users/me/folder/file1_001_134543_X5_6MGFS.txt, /users/me/folder/file2_231_234233_Y5_6MGFFAS.txt, etc...]

我想要 完整列表和新列表：

newlist = [file1, file2, etc...]

---

您可以在列表理解中使用

split（）

：

[x.split(variable)[1].split('_')[0] for x in the_list]

请参阅完整代码：

variable = "/users/me/folder/"
the_list = ["/users/me/folder/file1_001_134543_X5_6MGFS.txt", "/users/me/folder/file2_231_234233_Y5_6MGFFAS.txt"]

print [x.split(variable)[1].split('_')[0] for x in the_list]

产出：

['file1', 'file2']

['file1', 'file2']

---

我已经准备了另一个示例（带注释），以防您不想使用

列表理解

，而是使用一个简单的

循环：

variable = "/users/me/folder/"
the_list = ["/users/me/folder/file1_001_134543_X5_6MGFS.txt", "/users/me/folder/file2_231_234233_Y5_6MGFFAS.txt"]

results_list = list()

for full_path in the_list:
    _, file_name = full_path.split(variable) # This splits "/users/me/folder/file1_001_134543_X5_6MGFS.txt" into "/users/me/folder/" and "file1_001_134543_X5_6MGFS.txt" so we take the last one as 'file_name'
    file_name = file_name.split('_')[0]      # This splits e.g. "file1_001_134543_X5_6MGFS.txt" in ["file1", "001", "134543", "X5", "6MGFS.txt"] so we take only the first one, which is in index 0
    results_list.append(file_name)           # Adding e.g. "file1" to our 'results_list'

print results_list

输出：

['file1', 'file2']

如果您实际上只是尝试获取basename，则可以使用
os.path.basename
：

lst = ["/users/me/folder/file1_001_134543_X5_6MGFS.txt", "/users/me/folder/file2_231_234233_Y5_6MGFFAS.txt"]
from os import path
lst[:] = [path.basename(s).split("_",1)[0] for s in lst]


print(lst)

输出：

['file1', 'file2']

请提供真实数据和所需输出。
variable = "/users/me/folder/"
list = ["/users/me/folder/file1_001_134543_X5_6MGFS.txt", "/users/me/folder/file2_231_234233_Y5_6MGFFAS.txt"]

length = len(variable)
list = [x[length:] for x in list]