图1-2 展示了在"集合 API"中特殊方法的使用,包括 Python 3.6 中引入的collections.abc.Collection抽象基类。 此外,在第二版中,我采用了 Python 3.6 引入的f-string语法,它比旧的字符串格式化表示法(str.format()方法和%运算符)更具可读性,通常也更方便。 提示 仍然使用my_fmt.format()的一个原因是,当my_f...
string = "hello world" suffix = "world" if string[-len(suffix):] == suffix: print("String ends with suffix") Output String ends with suffix To check if a string or a substring of a string ends with a specific suffix in Python, you can use the str.endswith() method. This meth...
defcheck_integrity(file_path, expected_checksum): actual_checksum = calculate_sha256(file_path) returnactual_checksum == expected_checksum if__name__ =="__main__": file_path = input("Enter the path to the file: ") expected_checksum = inpu...
根据您提供的错误信息TypeError: expected string or bytes-like object,这个错误通常发生在Python中进行字符串或字节操作时,传入的参数类型不符合预期。为了解决这个问题,请按照以下步骤进行检查和处理: 问题分析: 错误表明函数期望接收的是字符串(str)或字节串(bytes)类型的对象,但实际上收到了其他类型的数据。 可能...
``` # Python script to monitor disk space and send an alert if it's low import psutil def check_disk_space(minimum_threshold_gb): disk = psutil.disk_usage('/') free_space_gb = disk.free / (230) # Convert bytes to GB if free_space_gb < minimum_threshold_gb: # Your code here...
datetime.strptime(reminder_date, '%Y-%m-%d')if now.date() == reminder_date.date():message = MIMEText(body, 'plain')message['From'] = sender_emailmessage['To'] = recipient_emailmessage['Subject'] = subjectserver.sendmail(s...
delete-file') req_template = string.Template(''' <file-name>$filePath</file-name> <delete-type>$deleteType</delete-type> ''') req_data = req_template.substitute(filePath=file_path, deleteType="unreserved") ret, _, _ = ops_conn.create(uri, req_data) if ops_return_result(ret...
file_content = note_file.read_random(0, file_size)returnStringIO.StringIO(file_content) parse_snt_file()函数接受类文件对象作为输入,并用于读取和解释粘贴便笺文件。我们首先验证类文件对象是否是 OLE 文件,如果不是,则返回None。如果是,我们使用OleFileIO()方法打开类文件对象。这提供了一个流列表,允许我们...
<StringToSignBytes>50 4F 53 54 0A 0A 61 70 70 6C 69 63 61 74 69 6F 6E 2F 78 2D 77 77 77 2D 66 6F 72 6D 2D 75 72 6C 65 6E 63 6F 64 65 64 0A 53 61 74 2C 20 32 39 20 44 65 63 20 32 30 31 38 20 30 37 3A 33 32 3A 33 34 20 47 4D 54 0A 2F 72 6F 6B...
In Python, different modules and open-source libraries provide various functions that are used to perform multiple operations. Sometimes, while dealing with a function, if the user inputs an integer or string value as an argument, the error “TypeError: expected string or bytes-like object” occ...