variableName1 = 3.14
variableName2 = 1.09
save_variable_to_file(variableName1) # function to be defined
save_variable_to_file(variableName1)

d = dict(my_variable_name=3.14)
save_variable_to_file('my_variable_name', d['my_variable_name'])

var_name = 'my_variable_name'
d = {var_name: 3.14}
save_variable_to_file(var_name, d[var_name])

import sys

def save_variable_to_file(var):

     names = sys._getframe(1).f_globals
     names.update(sys._getframe(1).f_locals)
     for key in names.keys():
         if names[key] == var:
             break

     if key:
         open(key+".txt","w").write(str(var))
     else:
         print(key,"not found")

thing = 42
save_variable_to_file(thing)

import glob

for fname in glob.iglob("*.txt"):
    vname = fname.rstrip(".txt")
    value = open(fname).read()
    exec(vname + "=" + value)

print(locals())

save_variable_to_file("variableName1", variableName1)

myVariables = {}
myVariables["variableName1"] = 3.14


for key, value in myVariables.items():
    save_variable_to_file(key, value)

var_dict = {'variable1': 3.14, 'variable2':1.09}
for key, value in var_dict.items():
    with open('path%s'%key, "w") as file:
        file.write(value)

for key, value in locals().items():
    with open(key + '.txt', 'w') as f:
        f.write(value)

def save_files(**files):
    for key, value in files.items():
        with open(key + '.txt', 'w') as f:
            f.write(value)

save_files(**my_previously_defined_dict)
save_files(**locals()) # as example above
save_files(filename='content')