Use string to access python variable

str_to_var.py

def print_local(var_str):                          
    def local_def():                               
        print(local_def)                           
                                                   
    local_local = 2                                
    symtbl = locals()                              
    print(symtbl)                                  
    if var_str in symtbl:                          
        print(symtbl[var_str])                     
    else:                                          
        print(f"Failed to find symbol '{var_str}'")
                                                   
def print_global(var_str):                         
    local_global = 3                               
    symtbl = globals()                             
    print(symtbl)                                  
    if var_str in symtbl:                          
        print(symtbl[var_str])                     
    else:                                          
        print(f"Failed to find symbol '{var_str}'")
                                                   
                                                   
for line in sys.stdin:                             
    str = line.strip()                             
    print_local(str)                               
    print_global(str)