File "C:/Users/Administrator/Desktop/test/11.py", line 22 posi = pd.read_csv("C:\Users\Administrator\Desktop工作簿1.csv",'r') ^ SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape是什么意思
时间: 2024-03-23 18:39:02 浏览: 81
这个错误意味着Python解释器无法解码文件路径中的Unicode转义字符。在您的代码中,您使用了反斜杠(\)来表示文件路径,但是Python解释器可能会将反斜杠识别为转义字符,例如\n或\t。为了解决这个问题,您可以尝试以下两种解决方案中的一种:
1. 将所有反斜杠替换为正斜杠(/),或者使用原始字符串(在字符串前面加上r),例如:
```
posi = pd.read_csv(r"C:\Users\Administrator\Desktop\工作簿1.csv", 'r')
```
2. 使用双反斜杠来表示单个反斜杠,例如:
```
posi = pd.read_csv("C:\\Users\\Administrator\\Desktop\\工作簿1.csv", 'r')
```
这应该可以解决您遇到的问题。
相关问题
sys:1: FutureWarning: In a future version of pandas all arguments of read_csv except for the argument 'filepath_or_buffer' will be keyword-only Traceback (most recent call last): File "C:/Users/Administrator/Desktop/test/11.py", line 22, in <module> posi = pd.read_csv("C:\\Users\\Administrator\\Desktop\\工作簿1.csv",'r') File "C:\Python37\lib\site-packages\pandas\util\_decorators.py", line 311, in wrapper return func(*args, **kwargs) File "C:\Python37\lib\site-packages\pandas\io\parsers\readers.py", line 586, in read_csv return _read(filepath_or_buffer, kwds) File "C:\Python37\lib\site-packages\pandas\io\parsers\readers.py", line 482, in _read parser = TextFileReader(filepath_or_buffer, **kwds) File "C:\Python37\lib\site-packages\pandas\io\parsers\readers.py", line 811, in __init__ self._engine = self._make_engine(self.engine) File "C:\Python37\lib\site-packages\pandas\io\parsers\readers.py", line 1040, in _make_engine return mapping[engine](self.f, **self.options) # type: ignore[call-arg] File "C:\Python37\lib\site-packages\pandas\io\parsers\c_parser_wrapper.py", line 69, in __init__ self._reader = parsers.TextReader(self.handles.handle, **kwds) File "pandas\_libs\parsers.pyx", line 542, in pandas._libs.parsers.TextReader.__cinit__ File "pandas\_libs\parsers.pyx", line 642, in pandas._libs.parsers.TextReader._get_header File "pandas\_libs\parsers.pyx", line 843, in pandas._libs.parsers.TextReader._tokenize_rows File "pandas\_libs\parsers.pyx", line 1917, in pandas._libs.parsers.raise_parser_error UnicodeDecodeError: 'utf-8' codec can't decode byte 0xd0 in position 0: invalid continuation byte是什么意思
这个错误意味着Pandas无法解码CSV文件中的某些字符,这通常是因为文件中包含了非UTF-8编码的字符。在您的代码中,您尝试使用read_csv函数读取CSV文件,并且使用'r'作为文件模式。但是,read_csv函数默认使用UTF-8编码,如果文件中包含了其他编码的字符,则可能会发生解码错误。
为了解决这个问题,您可以尝试以下几种方法:
1. 指定CSV文件的编码格式。例如,如果文件编码为GB2312,您可以这样读取文件:
```
posi = pd.read_csv("C:\\Users\\Administrator\\Desktop\\工作簿1.csv", encoding='GB2312')
```
2. 尝试使用不同的文件模式。例如,使用'rb'代替'r'模式,这将以二进制模式打开文件,而不是文本模式:
```
posi = pd.read_csv("C:\\Users\\Administrator\\Desktop\\工作簿1.csv", 'rb')
```
这些方法应该可以解决您遇到的问题。
>>> import numpy as np >>> import cv2 >>> import matplotlib as plt >>> import os >>> import time >>> def save_imginfo_to_txt(filepath, txtpath): ... files = os.listdir(filepath) ... res = [] ... for file in files: ... filename = filepath + "I:\\18Breakageratecalculation\\SVM run\\pos" + file ... img = cv2.imread(filename) ... res.append([filename, 1, 0, 0, img.shape[0], img.shape[1]]) ... save_txt = txtpath + "I:\\18Breakageratecalculation\\SVM run\\pos" + "file_name.txt" ... file = open(save_txt, 'a') ... for i in res: ... file.write(' '.join([str(j) for j in i])) ... file.write("\n") ... file.close() ... >>> filepath = r"I:\18Breakageratecalculation\SVM run\pos\" File "<stdin>", line 1 filepath = r"I:\18Breakageratecalculation\SVM run\pos\" ^ SyntaxError: unterminated string literal (detected at line 1) >>> filepath = r"I:\18Breakageratecalculation\SVM run\pos" >>> txtpath = r"I:\18Breakageratecalculation\SVM run" >>> save_imginfo_to_txt(filepath, txtpath) [ WARN:0@385.483] imread_('I:\18Breakageratecalculation\SVM run\posI:\18Breakageratecalculation\SVM run\pos1.png'): can't open/read file: check file path/integrity Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<stdin>", line 7, in save_imginfo_to_txt AttributeError: 'NoneType' object has no attribute 'shape'
在你的代码中,有几个错误需要修正。
首先,在定义 `filepath` 时,你使用了反斜杠 `\` 来转义字符,但是最后一个反斜杠没有被转义,因此需要在字符串前加上 `r` 来表示 raw string,或者在最后一个反斜杠后面再加上一个反斜杠。
其次,在调用 `cv2.imread` 时,你传递的文件名是 `filename`,但是其中包含了 `filepath`,因此实际上会读取到 `filepath + filename`,导致文件路径错误。你需要将 `filename` 中的 `filepath` 去掉,只保留文件名。
最后,在处理图片时,如果读取失败,`cv2.imread` 会返回 `None`,因此需要加上判断。如果读取成功,才能获取其形状。
下面是修改后的代码:
```
import numpy as np
import cv2
import matplotlib as plt
import os
import time
def save_imginfo_to_txt(filepath, txtpath):
files = os.listdir(filepath)
res = []
for file in files:
filename = filepath + "\\" + file
img = cv2.imread(filename)
if img is not None:
res.append([filename, 1, 0, 0, img.shape[0], img.shape[1]])
save_txt = txtpath + "\\" + "file_name.txt"
file = open(save_txt, 'a')
for i in res:
file.write(' '.join([str(j) for j in i]))
file.write("\n")
file.close()
filepath = r"I:\18Breakageratecalculation\SVM run\pos"
txtpath = r"I:\18Breakageratecalculation\SVM run"
save_imginfo_to_txt(filepath, txtpath)
```
请注意,这里的代码只是修正了语法错误,并不能保证程序的正确性,你需要根据你的需求进一步修改。
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