大约有 15,590 项符合查询结果（耗时：0.0331秒） [XML]
filename and line number of python script
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NameError: global name '__file__' is not defined on my Python interpreter: Python 2.7.6 (default, Sep 26 2014, 15:59:23). See stackoverflow.com/questions/9271464/…
– bgoodr
May 5 '17 at 17...
Is there a way to instantiate objects from a string holding their class name?
...ave in another question, this code fails on VS2010 with ambiguous template errors because of make_pair. To fix, change make_pair to std::pair<std::string,Base*()()> and it should fix those errors. I also got some linking errors which were fixed by adding BaseFactory::map_type BaseFactory::map ...
Remove columns from dataframe where ALL values are NA
...able(bd)
system.time({df1 <- bd[,colSums(is.na(bd) < nrow(bd))]})
# error -- can't allocate vector of size ...
system.time({df2 <- bd[, !apply(is.na(bd), 2, all)]})
# error -- can't allocate vector of size ...
system.time({df3 <- Filter(function(x)!all(is.na(x)), bd)})
## user system e...
How do I get list of methods in a Python class?
...args',
<unbound method OptionParser.enable_interspersed_args>),
('error', <unbound method OptionParser.error>),
('exit', <unbound method OptionParser.exit>),
('expand_prog_name', <unbound method OptionParser.expand_prog_name>),
...
]
# python3
>>> inspect.getm...
Datatables - Search Box outside datatable
...red to be able to call .search on it (if will throw a "function undefined" error otherwise). See: datatables.net/faqs/#api
– Lionel
Mar 30 '15 at 7:28
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jQuery selector regular expressions
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I'm getting Error: Syntax error, unrecognized expression: unsupported pseudo: regex
– ryan2johnson9
Jan 29 '15 at 0:15
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Why does C++ need a separate header file?
...for backwards compatibility.
Today, it makes no sense. It is inefficient, error-prone and overcomplicated. There are far better ways to separate interface and implementation, if that was the goal.
However, one of the proposals for C++0x was to add a proper module system, allowing code to be compil...
I change the capitalization of a directory and Git doesn't seem to pick up on it
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That fatal error means you do not have a GIT repository at that location. git commands only work in directories with GIT repositories.
– David Manpearl
Sep 8 '15 at 18:43
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Excel VBA App stops spontaneously with message “Code execution has been halted”
...d you will be able to execute the macro
successfully without getting the error message “Code execution has been interrupted”.
But, after I inserted this line of code, I was not able to use Ctrl+Break any more. So it works but not greatly.
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No == operator found while comparing structs in C++
Comparing two instances of the following struct, I receive an error:
8 Answers
8
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