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Write to UTF-8 file in Python
...u've given me a byte string!"
Try writing the Unicode string for the byte order mark (i.e. Unicode U+FEFF) directly, so that the file just encodes that as UTF-8:
import codecs
file = codecs.open("lol", "w", "utf-8")
file.write(u'\ufeff')
file.close()
(That seems to give the right answer - a fil...
SQL left join vs multiple tables on FROM line?
... Employee.DepartmentID
Note that the last one there is an inner join, in order to fulfill the criteria that you only want departments with people.
Ok, so what happens now. Well, the problem is, it depends on the database engine, the query optimizer, indexes, and table statistics. Let me explain.
...
Number of visitors on a specific page
... (for which I have URL).
I don't find in Analytics where to enter a URL in order to look for statistics for this specific page.
...
What is the difference between Non-Repeatable Read and Phantom Read?
... will allow dirty reads, which in some cases is an acceptable trade off in order to achieve higher concurrency or is necessary due to an edge case, such as troubleshooting an in progress transaction from another connection. It is good that the idea of a dirty read doesn't pass the "smell test" for y...
Print array elements on separate lines in Bash?
...ame -a "${alpha[@]}"
Using shuf; note that results might not come out in order:
shuf -e "${alpha[@]}"
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How does Django's Meta class work?
...t of django
Model metadata is “anything that’s not a field”, such as ordering options (ordering), database table name (db_table), or human-readable singular and plural names (verbose_name and verbose_name_plural). None are required, and adding class Meta to a model is completely optional.
http...
How to check if array is empty or does not exist? [duplicate]
... out that my original answer, more than anything else, addressed the wrong order of the conditions being evaluated in the question. In this sense, it fails to address several scenarios, such as null values, other types of objects with a length property, etc. It is also not very idiomatic JavaScript....
SQLAlchemy: print the actual query
...compile(dialect=postgresql.dialect()))
When given an ORM Query object, in order to get at the compile() method we only need access the .statement accessor first:
statement = query.statement
print(statement.compile(someengine))
with regards to the original stipulation that bound parameters are to b...
Command line: piping find results to rm
... intend to use with
-delete, you should explicitly specify -depth in order to avoid
later surprises. Because -delete implies -depth, you cannot
usefully use -prune and -delete together.
P.S. Note that piping directly to rm isn't an option, because rm doesn't expect filenames on stan...
The application may be doing too much work on its main thread
... all the times. But if the number of frames skipped and large
and in the order of 300+ then there can be some serious trouble with
your code. Android devices come in a vast array of hardware unlike ios
and windows devices. The RAM and CPU varies and if you want a
reasonable performance and u...