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How to change the CHARACTER SET (and COLLATION) throughout a database?
...the utf8 character set is only a subset of the real UTF8 character set. In order to save one byte of storage, the Mysql team decided to store only three bytes of a UTF8 characters instead of the full four-bytes. That means that some east asian language and emoji aren't fully supported. To make sure ...
Relative imports in Python 2.7
...ia sys.path . Additional code that manipulates sys.path would be needed in order for direct execution to work without the top level package already being importable." -- this is the most disturbing bit to me since this "additional code" is actually quite long and can't be stored elsewhere in package...
How exactly does the callstack work?
...called function prologue and epilogue, respectively.
Inside the frame the order of the variables is completely unspecified; Compilers "reorder" the positions of local variables inside a frame appropriately to optimize their alignment so the processor can fetch them as quickly as possible. The cruci...
How do I sort unicode strings alphabetically in Python?
...de string s, it uses the code:
spec_dict = {'Å':'A', 'Ä':'A'}
def spec_order(s):
return ''.join([spec_dict.get(ch, ch) for ch in s])
Python has a much better, faster and more concise way to perform this auxiliary task (on Unicode strings -- the analogous method for byte strings has a diffe...
Selecting multiple columns in a pandas dataframe
...mns, like df.ix[0, 'Col1':'Col5']. That gets all columns that happen to be ordered between Col1 and Col5 in the df.columns array. It is incorrect to say that ix indexes rows. That is just its most basic use. It also supports much more indexing than that. So, ix is perfectly general for this question...
In a javascript array, how do I get the last 5 elements, excluding the first element?
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Using @property versus getters and setters
...rk: Python never binds the callable to the object and I need the object in order to call the function. Even creating the decorator in the class doesn't work, as although now we have the class, we still don't have an object to work with.
So we're going to need to be able to do more here. We do kno...
Python: Checking if a 'Dictionary' is empty doesn't seem to work
..."Nobody is online, please use REGISTER command" \
" in order to register into the server")
else:
socket.send("ONLINE " + ' ' .join(self.users.keys()))
share
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improv...
How does lucene index documents?
... Yes, you are correct. The only thing to mention is the final order is defined using sorting rules (relevance index in trivial case), thus the order in which segments are searched isn't relevant.
– Denis Bazhenov
Jul 19 '16 at 5:25
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Can you run GUI applications in a Docker container?
... > /etc/apt/sources.list
RUN apt-get update
# Install vnc, xvfb in order to create a 'fake' display and firefox
RUN apt-get install -y x11vnc xvfb firefox
RUN mkdir ~/.vnc
# Setup a password
RUN x11vnc -storepasswd 1234 ~/.vnc/passwd
# Autostart firefox (might not be the best way...