大约有 43,000 项符合查询结果（耗时：0.0618秒） [XML]
How to refer to relative paths of resources when working with a code repository
We are working with a code repository which is deployed to both Windows and Linux - sometimes in different directories. How should one of the modules inside the project refer to one of the non-Python resources in the project (CSV files, etc.)?
...
How to import a module given its name as string?
I'm writing a Python application that takes as a command as an argument, for example:
11 Answers
...
@synthesize vs @dynamic, what are the differences?
What are the differences between implementing a @property with @dynamic or @synthesize ?
8 Answers
...
Batch file to copy files from one folder to another folder
I have a storage folder on a network in which all users will store their active data on a server. Now that server is going to be replaced by a new one due to place problem so I need to copy sub folders files from the old server storage folder to new server storage folder. I have below ex:
...
Insert into a MySQL table or update if exists
I want to add a row to a database table, but if a row exists with the same unique key I want to update the row.
11 Answers
...
Label encoding across multiple columns in scikit-learn
I'm trying to use scikit-learn's LabelEncoder to encode a pandas DataFrame of string labels. As the dataframe has many (50+) columns, I want to avoid creating a LabelEncoder object for each column; I'd rather just have one big LabelEncoder objects that works across all my columns of data. ...
How can we prepend strings with StringBuilder?
I know we can append strings using StringBuilder . Is there a way we can prepend strings (i.e. add strings in front of a string) using StringBuilder so we can keep the performance benefits that StringBuilder offers?
...
what does the __file__ variable mean/do?
I usually just hard-wire these with the actual path. But there is a reason for these statements that determine path at runtime, and I would really like to understand the os.path module so that I can start using it.
...
Determining the last changelist synced to in Perforce
A question that occasionally arises is what is the best way to determine the changelist that you last synced to in Perforce. This is often needed for things like injecting the changelist number into the revision info by the automatic build system.
...
How can I find all of the distinct file extensions in a folder hierarchy?
On a Linux machine I would like to traverse a folder hierarchy and get a list of all of the distinct file extensions within it.
...