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Check if object is file-like in Python
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AttributeError can be raised for all sorts of reasons that have nothing to do with whether the object supports the interface you need. hasattr is needed for filelikes that don't derive from IOBase
– Erik Aronesty
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subtle differences between JavaScript and Lua [closed]
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Some more differences:
Lua has native support for coroutines.
UPDATE: JS now contains the yield keyword inside generators, giving it support for coroutines.
Lua doesn't convert between types for any comparison operators. In JS, only === and !== don't type juggle.
Lua ...
Git: fatal: Pathspec is in submodule
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Removing the directory from git and adding it again worked for me:
git rm --cached directory
git add directory
This works if you purposefully removed the .git directory because you wanted to add directory to your main git project. In my specific case, I had git cloned an extensi...
How to change a table name using an SQL query?
...t is, this cannot be used to move a table from one schema to another). So, for example, this is valid:
EXEC sp_rename 'myschema.Stu_Table', 'Stu_Table_10'
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How to solve Operator '!=' cannot be applied to operands of type 'T' and 'T' [duplicate]
This code snippet works as expected for the int type:
3 Answers
3
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what is the unsigned datatype?
...ned "typeless" type used a couple of times, but never seen an explanation for it. I suppose there's a corresponding signed type. Here's an example:
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Task not serializable: java.io.NotSerializableException when calling function outside closure only o
...al one.
Not to get into too many details, but when you run different transformations on a RDD (map, flatMap, filter and others), your transformation code (closure) is:
serialized on the driver node,
shipped to the appropriate nodes in the cluster,
deserialized,
and finally executed on the nodes
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Git Push ERROR: Repository not found
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@GrantBirchmeier I want to upvote 100 times for your comment.
– technophyle
Nov 3 '15 at 3:07
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CSV new-line character seen in unquoted field error
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It'll be good to see the csv file itself, but this might work for you, give it a try, replace:
file_read = csv.reader(self.file)
with:
file_read = csv.reader(self.file, dialect=csv.excel_tab)
Or, open a file with universal newline mode and pass it to csv.reader, like:
reader = cs...
@selector() in Swift?
...erns that in Objective-C make use of selectors work differently in Swift. (For example, use optional chaining on protocol types or is/as tests instead of respondsToSelector:, and use closures wherever you can instead of performSelector: for better type/memory safety.)
But there are still a number of...