python - 生成多个文件python

Question

我有一个模板文件，例如包含此文本的“template.txt”：

variable_1 = value_1 ;
variable_2 = value_2 ;
variable_3 = value_3 ;

我想通过每次修改模板文件中的值（这些值将由另一个 Python 脚本 (Pyevolve) 传递。

这可能吗（在 Python 或任何其他脚本语言中）？

先感谢您。

Answer 1

import re

# this regular expression matches lines like "  abcd = feg ; "
CONFIG_LINE = re.compile("^\s*(\w+)\s*=\s*(\w+)\s*;")

# this takes { "variable_1":"a", "variable_2":"b", "variable_3":"c" }
#   and turns it into "folder_a_b_c"
DIR_FMT = "folder_{variable_1}_{variable_2}_{variable_3}".format

def read_config_file(fname):
    with open(fname) as inf:
        matches = (CONFIG_LINE.match(line) for line in inf)
        return {match.group(1):match.group(2) for match in matches if match}

def make_data_file(variables, contents):
    dir = DIR_FMT(**variables)
    fname = os.path.join(dir, "data.txt")
    with open(fname, "w") as outf:
        outf.write(contents)

def main():
    variables = read_config_file("template.cfg")
    make_data_file(variables, "this is my new file")

if __name__=="__main__":
    main()