相关疑难解决方法(0)

我有一个Python脚本:

if True:
    if False:
        print('foo')
   print('bar')

但是,当我尝试运行我的脚本时,Python提出了一个IndentationError:

  File "script.py", line 4
    print('bar')
               ^
IndentationError: unindent does not match any outer indentation level

我一直在玩我的程序,我还能够产生其他三个错误:

• IndentationError: unexpected indent
• IndentationError: expected an indented block
• TabError: inconsistent use of tabs and spaces in indentation

这些错误意味着什么？我究竟做错了什么？我该如何修复我的代码？

IndentationError:意外的unindent为什么???

#!/usr/bin/python
import sys
class Seq:
    def __init__(self, id, adnseq, colen):
        self.id     = id
        self.dna    = adnseq
        self.cdnlen = colen
        self.prot   = ""
    def __str__(self):
        return ">%s\n%s\n" % (self.id, self.prot)
    def translate(self, transtable):
        self.prot = ""
        for i in range(0,len(self.dna),self.cdnlen):
            codon = self.dna[i:i+self.cdnlen]
            aa    = transtable[codon]
            self.prot += aa
    def parseCommandOptions(cmdargs):
        tfname = cmdargs[1]
        sfname = cmdargs[2]
        return (tfname, sfname)
    def readTTable(fname):
        try:
            ttable = {}
            cdnlen = -1
            tfile = open(fname, "r")
            for line in tfile:
                linearr = line.split() …