Traceback (most recent call last): File"/usr/lib/python3/dist-packages/pip/req/req_install.py", line1006,incheck_if_exists self.satisfied_by=pkg_resources.get_distribution(str(no_marker)) File"/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/__init__....
# print(all_data[1:-1]) # save_data_to_table(all_data, filename, sheetname) if file_exists(filename): update_data(filename, all_data[1:]) else: save_data_to_table([all_data[0]], filename, sheetname) update_data(filename, all_data[1:]) if __name__ == '__main__': m...
python3 安装scrapy Exception: Traceback (most recent call last): File "/usr/lib/python3/dist-packages/pip/req/req_install.py", line 1006, in check_if_exists解决方法 2016-07-22 00:48 −... INnoVation-V2 0 45697 Python3 pip安装和生成requirements文件 ...
self.pid_file = pid_file self.check() self.startApplication() #check if the current application is already running def check( self ): #check if the pidfile exists if not os.path.isfile( self.pid_file ): return #read the pid from the file pid = 0 try: file = open( self.pid_fi...
os.path.exists(filepath) check某个文件或目录是否存在 os.path.join(a,b)拼接目录地址 第二步:文件压缩与解压相关操作: import zipfile with zipfile.ZipFile(originalFilepath) as zf: zf.extractAll(targetPath) 第三步:pandas DataFrame里面取到某个列target的数据, 做类型转换: ...
CHECK：检查约束，确保某列中所有的值满足指定的条件。那么，参照着上方的SQL语句知识，我们将删除表以及创建表结构的语句添加到代码中。示例代码：（删除/创建表score）cur.execute('DROP TABLE IF EXISTS score')cur.execute('''CREATE TABLE score(StuId INTEGER PRIMARY KEY NOT NULL,StuName TEXT NOT...
('Confirm:')ifconfirmin('','Y','y'):print('\033[34mInfo:\033[0m The target directory is '+sdir)returnsdirelse:exit()else:# 如果目标目录设定,但是不存在,则提示用户是否创建目标目录ifnot os.path.exists(tdir):print('Target directory don\'t exist\n'\'\033[36mWhether to create the...
if ignore is not None: ignored_names = ignore(os.fspath(src), [x.name for x in entries]) else: ignored_names = set() #此处原本没有判断文件夹不存在的判断,这里判断一下当文件夹不存在时创建文件夹避免直接创建可能导致的报错 if not os.path.exists(dst): ...
from untils.log_trace import * class CheckResult(): def dict_value(self,key,actual): try: if key in actual: return actual[key] else: for keys in actual: return self.dict_value(key,actual[keys]) except Exception as e: logging.error(e) return None def cmpdict(self,expect,actual,equal...
You should immediately notice that we import another handy command named exists. This returns True if a file exists, based on its name in a string as an argument. It returns False if not. Did you see that trick I did with cat? It only works on Linux or OSX, on Windows use type to...