Question

我正在努力将文件从一个位置复制到另一个位置。使用shutil.copy很容易。一切都很好，直到一个特殊的来源＆＃34;来了。

文件的路径如下：

c:\install\NewCustomer\fire.exe

现在每当我执行此操作时，都会抛出错误：

    'unicodeescape' codec can't decode bytes in position 975: malformed \N character escape
  at IronPython.Runtime.LiteralParser.ParseString (System.Char[] text, Int32 start, Int32 length, Boolean isRaw, Boolean isUni, Boolean normalizeLineEndings) [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Tokenizer.MakeStringToken (Char quote, Boolean isRaw, Boolean isUnicode, Boolean isBytes, Boolean isTriple, Int32 start, Int32 length) [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Tokenizer.ContinueString (Char quote, Boolean isRaw, Boolean isUnicode, Boolean isBytes, Boolean isTriple, Int32 startAdd) [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Tokenizer.ReadString (Char quote, Boolean isRaw, Boolean isUni, Boolean isBytes) [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Tokenizer.Next () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Tokenizer.GetNextToken () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.FetchLookahead () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.NextToken () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.MaybeEat (TokenKind kind) [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.FinishAssignments (IronPython.Compiler.Ast.Expression right) [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseExprStmt () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseSmallStmt () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseSimpleStmt () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseStmt () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseSuite () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseTryStatement () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseStmt () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseSuite () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseClassOrFuncBody () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseFuncDef () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseStmt () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseSuite () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseClassOrFuncBody () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseClassDef () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseStmt () [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseFileWorker (Boolean makeModule, Boolean returnValue) [0x00000] in <filename unknown>:0
  at IronPython.Compiler.Parser.ParseFile (Boolean makeModule, Boolean returnValue) [0x00000] in <filename unknown>:0
  at IronPython.Runtime.PythonContext.ParseAndBindAst (Microsoft.Scripting.Runtime.CompilerContext context) [0x00000] in <filename unknown>:0
  at IronPython.Runtime.PythonContext.CompilePythonCode (Microsoft.Scripting.SourceUnit sourceUnit, Microsoft.Scripting.CompilerOptions options, Microsoft.Scripting.ErrorSink errorSink) [0x00000]

这是因为特殊性格＆＃34; \ N＆＃34;。我知道如果我编写以下代码，它将起作用：

r"c:\install\NewCustomer\fire.exe"

但问题是源路径是动态生成的，因此在运行时我不知道是否必须处理这个特殊字符。有没有办法处理这种情况？

Answer 1

为什么要为路径生成Python代码？将路径生成为文本文件，然后将其读入。

\n并不是唯一可能导致问题的特殊字符 - 您可能必须始终使用原始字符串。

Answer 2

yourvariable.strip()

如果您在调用变量时运行该变量，则应删除换行符。

文件路径有特殊字符\ N.

2 个答案: