defread(): basepath=os.path.abspath(__file__) folder=os.path.dirname(basepath) data_path=os.path.join(folder,'data.txt') withopen(data_path,encoding='utf-8')asf: text=f.read() print(text) 运行效果如下图所示: 使用pkgutil库 ...
file-like Object:像open()函数返回的这种有个read()方法的对象,在Python中统称为file-like Object。除了file外,还可以是内存的字节流,网络流,自定义流等等。file-like Object不要求从特定类继承,只要写个read()方法就行。 StringIO就是在内存中创建的file-like Object,常用作临时缓冲。 • 写文件 调用open( ...
converters={'col1', func} 对选定列使用函数func转换,通常表示编号的列会使用(避免转换成int) dfjs = pd.read_json('file.json') 可以传入json格式字符串 dfex = pd.read_excel('file.xls', sheetname=[0,1..]) 读取多个sheet页,返回多个df的字典 ''' #df.to_csv() 1. 2. 3. 4. 5. 6. ...
Traceback (most recent call last): File “C:/Users/chenh/Desktop/Opencv/learning/learning_cv.py”, line 54, in foo(*l) File “C:/Users/chenh/Desktop/Opencv/learning/learning_cv.py”, line 50, in foo args[0] = 5 TypeError: ‘tuple’ object does not support item assignment 无论我...
subprocess.getoutput(cmd) 接收字符串格式的命令,执行命令并返回执行结果,其功能类似于os.popen(cmd).read()和commands.getoutput(cmd)。 subprocess.getstatusoutput(cmd) 执行cmd命令,返回一个元组(命令执行状态, 命令执行结果输出),其功能类似于commands.getstatusoutput()。
os.path.getsize(x) 获取文件x的大小(单位:字节) os.path.isfile(x) 判断x是不是文件 os.remove(x) 删除文件x os.rmdir(x) 删除文件夹x。x必须是空文件夹才能删除成功 os.rename(x,y) 将文件或文件夹x改名为y。不但可以改名,还可以起到移动文件或文件夹的作用。例如,os.rename("c:/tmp/a","c:...
Scenario: A user wants to get the data from a CSV file of a web source for analyzing, and he doesn’t want to download the CSV file. But when he uses
而multipart/form-data则是添加了分隔符、参数描述信息等内容的构造体。具体格式如下: ${bound} Content-Disposition: form-data; name="Filename"HTTP.pdf ${bound} Content-Disposition: form-data; name="file000"; filename="HTTP协议详解.pdf"Content-Type: application/octet-stream%PDF-1.5file content%%...
@ddt.file_data(r'xxx\login.yml') @ddt.unpack def test_run(self,**kwargs): url = kwargs.get('url') method = kwargs.get('method') header = kwargs.get('header') data =kwargs.get('data') is_json = kwargs.get('is_json', 0) ...
{e}") def upload_file(bucket, object_name, data): try: result = bucket.put_object(object_name, data) logging.info(f"File uploaded successfully, status code: {result.status}") except oss2.exceptions.OssError as e: logging.error(f"Failed to upload file: {e}") def download_file(...