In the above code, inside the try block, we are trying to open the file” file_name = open(‘check.txt’)”that does not exist in that folder. This can give an error, but we are aware of that error, so we mentioned that error name in the except block, “except FileNotFoundError...
except FileNotFoundError: print('The file does not exist.') else: print(contents) 1. 2. 3. 4. 5. 6. 7. 8. 因为当前执行文件目录下没有a.txt文件,所以会执行FileNotFoundError的异常处理,在控制台打印出The file does not exist.文本信息。else代码块放的是try代码块成功执行后需要继续执行的语句。
第一种情况直接下载安装即可,在cmd中,pip install xxx;第二种情况电脑中可能存在多个版本的Python,建议保留一个常用的即可。 十、 FileNotFoundError 文件不存在 报错信息: 1FileNotFoundError: File b'E:\test\test_data.csv' does not exist 错误示例: 1pd.read_csv('E:\test\test_data.csv')2# 错误...
file_contents = read_file(input_file) try: with open(outputfile, write_mode, encoding='utf-8') as fw: fw.write(file_contents) except IOError as ioerror: print(ioerror) print('写入文件出错') input_file = 'test.txt' output_file= 'new_test.txt' save_to_file(input_file, output_fil...
content = file.read()print(content)else:print(f"File{file_path}does not exist.") 2.PermissionError PermissionError通常在你没有足够的权限来访问、读取、写入或删除文件时发生。这可能是因为文件权限设置不正确,或者你的用户账户没有足够的权限。
FileNotFoundError:File xxxx does not exist 原因:文件xxxx没找到。可能写错了文件名,或者文件不存在 ”当前目录中” IndexError:too many indices for array 原因:索引下标的维度超出了其该对象的定义中给出的维数 改用切片的方式 TypeError:Required argumengt xxxx not found ...
3.2 处理FileNotFoundError异常 defcount_words(filename):'''计算一个文件大致包含多少个单词'''try: with open(filename) as f1: contents=f1.read()exceptFileNotFoundError: msg="Sorry, the file"+ filename +"does not exist."print(msg)else:#计算文件大致包含多少个单词words =contents.split() ...
exceptFileNotFoundError: msg = "Sorry, the file " + filename + " does not exist.” print(msg) 3.4分析文本 >>> title = "Alice in Wonderland” >>> title.split() ['Alice', 'in', 'Wonderland'] 方法split()已空格为分隔符将字符串拆分成多个部分,并将这些部分都存储到一个列表中。
1FileNotFoundError: Fileb'E:testtest_data.csv'doesnotexist 错误示例: 1pd.read_csv('E:testtest_data.csv') 2# 错误原因:路径中包含't',系统错误地认为是制表符。 解决方法: 在确保该路径下确实存在所写文件后,在读取文件路径前面加'r',表示只读,作为文件路径读取;或者使用双斜杠' '来进行转义,形如:...
When trying topoetry adda dependency or dopoetry installorpoetry update, the command fails with an error saying that the file does not exist. The file refers to the weel of any dependencies that need to be installed. However, the file actually does exist at the correct location, but is som...