我想从给定字典（python）中的字符串中删除 \u00a9 ， \u201d 和类似的字符。答案

【问题标题】：I want to remove \u00a9 , \u201d and characters like that from my string in given dictionary (python).我想从给定字典（python）中的字符串中删除 \u00a9 ， \u201d 和类似的字符。
【发布时间】：2014-06-14 10:08:44
【问题描述】：

d = {
    "key": "Impress the playing crowd with these classic "
           "Playing Cards \u00a9 Personalized Coasters.These beautiful"
           " coasters are made from glass, and measure approximately 4\u201d x 4\u201d (inches)"
           ".Great to look at, and lovely to the touch.There are 4 coasters in a set.We have "
           "created this exclusive design for all card lovers.Each coaster is a different suit, "
           "with the underneath.Make your next Bridge, or Teen Patti session uber-personal!"
           "Will look great on the bar, or any tabletop.Gift Designed for: Couples, Him, "
           "HerOccasion:Diwali, Bridge, Anniversary, Birthday"}

我已经尝试过替换功能，但没有用。

s = d[key].replace('\u00a9','')

【问题讨论】：

请注意\u00a9 是版权符号。删除可能会产生法律后果。
同意，删除您无法理解的字符似乎是解决此问题的错误方法。（实际文本有更严重的问题，但我想这超出了本网站的范围。）
请解释“但没用”。发生了什么？你预计会发生什么？
@André 写出来作为答案，这似乎是 OP 正在寻找的。span>
你不应该删除 unicode 字符 - 你必须使用 DFEAL - 请阅读：joelonsoftware.com/articles/Unicode.html

标签： python string dictionary

【解决方案1】：

如果要从字符串中删除所有 Unicode 字符，可以使用string.encode("ascii", "ignore")。

它尝试将字符串编码为 ASCII，第二个参数 ignore 告诉它忽略它无法转换的字符（所有 Unicode 字符），而不是像通常没有第二个参数那样抛出异常，所以它返回一个只包含可以成功转换的字符的字符串，从而删除所有 Unicode 字符。

示例用法：

unicodeString = "Héllò StàckOvèrflow"
print(unicodeString.encode("ascii", "ignore")) # prints 'Hll StckOvrflow'

更多信息：Python 文档中的str.encode() 和Unicode。

【讨论】：

【解决方案2】：

d['key'].decode('unicode-escape').encode('ascii', 'ignore')

就是你要找的东西

>>> d = {
...     "key": "Impress the playing crowd with these classic "
...            "Playing Cards \u00a9 Personalized Coasters.These beautiful"
...            " coasters are made from glass, and measure approximately 4\u201d x 4\u201d (inches)"
...            ".Great to look at, and lovely to the touch.There are 4 coasters in a set.We have "
...            "created this exclusive design for all card lovers.Each coaster is a different suit, "
...            "with the underneath.Make your next Bridge, or Teen Patti session uber-personal!"
...            "Will look great on the bar, or any tabletop.Gift Designed for: Couples, Him, "
...            "HerOccasion:Diwali, Bridge, Anniversary, Birthday"}
>>> d['key'].decode('unicode-escape').encode('ascii', 'ignore')
'Impress the playing crowd with these classic Playing Cards  Personalized Coasters.These beautiful coasters are made from glass, and measure approximately 4 x 4 (inches).Great to look at, and lovely to the touch.There are 4 coasters in a set.We have created this exclusive design for all card lovers.Each coaster is a different suit, with the underneath.Make your next Bridge, or Teen Patti session uber-personal!Will look great on the bar, or any tabletop.Gift Designed for: Couples, Him, HerOccasion:Diwali, Bridge, Anniversary, Birthday'
>>>

【讨论】：

AttributeError: 'str' object has no attribute 'decode'
str 没有 decode() 方法。

【解决方案3】：

要删除由 unicode 转义序列表示的字符，您需要使用 unicode 字符串。

例如，

s = d[key].replace(u'\u00a9', '')

但是，正如人们在 cmets 中提到的那样，删除版权符号可能是一个非常糟糕的主意，尽管这取决于您对字符串的实际操作。

【讨论】：

（对于它的价值，d['key'].replace("\u00a9","") 在 Python3.3 上按预期工作）
@AdamSmith 它在 Python2.7 中有所作为
是的，我在尝试 py2.7