for循环中的字节到字符串错误答案

【问题标题】：byte to string error in for loopfor循环中的字节到字符串错误
【发布时间】：2018-08-09 19:14:20
【问题描述】：

我调用了变量并且我存储的值是：

b'0,0.0372549,0.00653595,0,0.00490196,0.00653595,0.897386,0.00653595,0.0294118,0.00653595,0,0,0,0,0,0.00490196,0,0967,0,0.733. ，0.00277778,0.116111,0.327083,0.0265278,0.174167,0.0623611,0.116806,0.055,0.0270833,0,0,0.01875,0.0333333,0,0,0,0.00625 \ n0,0.997554,0.00133297,4.75327e，05,0.000118379,6.65359e -05,0.000253487,0.000141784,0.000183293,0.000220498,7.08961e-05,0,0,0,0,0,1.10967e-05,0,0,0\n0,0.082346,0.890084,0,0.032034468061,0.03203468061, ，0.011562,0.011562011562,0.0.0.0.654957,0.0.0.0.654957,0.0.0.0.0.0.0.0.0.0.0.0.0.0.654957,0.0.663,0.0.00150356,0.00.00150356,0.00.00150356,0.00.00150356,0.00.00150356,0.0.001553427,0.00150356。0.00150356。0.00150356,0.00150356。，0,0,0.0190476,0.00952381,0,0,0,0 \ n0,0.429955,0.0543849,0.106071,0.0297159,0.0876241,0.16761,0.0435997,0.0293692,0.0167052,0.00492931,0.0143504,0.00664048,0.00127352,0.000520984,0.00405789,5.78871 E-05,0,0,0.00313481 \ n0,0.372212,0.459023,0.00909091,0.0183902,0.00273224,0.0897315,0.00666667,0.0163417,0.000546448,0.000208333,0.00929924,0.00666667,0,0,0,0,0,0,0.00909091 \ n0,0.916784,0.055 7399,0.00127288,0.0044239,0.00263795,0.00418008,0.00522153,0.00448012,0.00418008,0.00522153,0.00448012,0.00165377012,0.00165377012.0.00165377,0.0001011532,4.219770-0.0.76602019770-0.766020-0.0,0.0.0.0.0393295 \ n0.0791 ,0.0119181,0.00617358,0.00279979,0.027469,0.00652177,0.00186348,0.00522\515,0.0121172,0.000151166,0,0,0,0,0.017316,455,0,0.0004

现在我正在编写以下代码：

for p in out.rstrip().split('\n'):
    print(p)

现在我收到以下错误：

TypeError: 需要一个类似字节的对象，而不是 'str'

如何解决这个错误？我尝试了 unicoding 但不起作用。获得所需输出的 for 循环代码是什么。

【问题讨论】：

标签： python unicode byte

【解决方案1】：

要将其永久更改为普通字符串以删除 b：

out = out.decode("utf-8")

for p in out.rstrip().split('\n'):
    print(p)

【讨论】：

根据你的代码 b 是先来的，我不想要那个。
他只需要使用 splitlines() 而不是 split('\n')，因为它用于 str-objects 而不是 byte-like objects。
这应该可以消除开头的字节 b'' 你必须解码字符串
如果您不想解码字符串，请使用out.rstrip().split(b'\n') 拆分它。那是b'\n' 而不是'\n'

【解决方案2】：

您尝试在“字符串”上使用“split”，因此您基本上只需要删除“b”，甚至在循环之前使用 str(foo)：

foo = '0,0.0372549,0.00653595,0,0.00490196,0.00653595,0.897386,0.00653595,0.0294118,0.00653595,0,0,0,0,0,0.00490196,0,0,0,0\n0,0.0158333,0.0179167,0.00277778,0.116111,0.327083,0.0265278,0.174167,0.0623611,0.116806,0.055,0.0270833,0,0,0.01875,0.0333333,0,0,0,0.00625\n0,0.997554,0.00133297,4.75327e-05,0.000118379,6.65359e-05,0.000253487,0.000141784,0.000183293,0.000220498,7.08961e-05,0,0,0,0,0,1.10967e-05,0,0,0\n0,0.082346,0.890084,0,0.000346861,0.0161043,0.0105323,0.000354988,0.00011562,0.00011562,0,0,0,0,0,0,0,0,0,0\n0,0.654957,0.306633,0,0.00150356,0.000466853,0.00273321,0.000933707,0.00233427,0.00186741,0,0,0,0,0.0190476,0.00952381,0,0,0,0\n0,0.429955,0.0543849,0.106071,0.0297159,0.0876241,0.16761,0.0435997,0.0293692,0.0167052,0.00492931,0.0143504,0.00664048,0.00127352,0.000520984,0.00405789,5.78871e-05,0,0,0.00313481\n0,0.372212,0.459023,0.00909091,0.0183902,0.00273224,0.0897315,0.00666667,0.0163417,0.000546448,0.000208333,0.00929924,0.00666667,0,0,0,0,0,0,0.00909091\n0,0.916784,0.0557399,0.00127288,0.0044239,0.00263795,0.00418008,0.00522153,0.00448012,0.0016537,0.0015471,0.00140777,0.00011532,4.21977e-05,4.21977e-05,5.76602e-05,0,0,0,0.000393295\n0,0.817223,0.10791,0.0119181,0.00617358,0.00279979,0.027469,0.00652177,0.00186348,0.00522515,0.0121172,0.000151166,0,0,0,0,0.00017316,0,0,0.000454545\n'

for p in foo.rstrip().split('\n'):
    print(p)

另一种解决方案是使用“分割线”，如下所示：

for p in foo.rstrip().splitlines():
    print(p)

【讨论】：

您正在手动删除字节语句。这是不正确的
阅读我所说的更好:)
既然你没有给我们完整的需求，我会猜测解决方案，顺便说一句，最后一个解决方案就是你要找的，它仍然是一个字节声明。
两者都不正确。我只想要任何字符串之前的值而不是 b 。您通过从前面删除字符 b 来编写 foo。
好吧，我会打电话的。你的问题不是这么说的。修复它。