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How do I execute inserts and updates in an Alembic upgrade script?
...e following example:
from alembic import op
# revision identifiers, used by Alembic.
revision = '1ce7873ac4ced2'
down_revision = '1cea0ac4ced2'
branch_labels = None
depends_on = None
def upgrade():
# ### commands made by andrew ###
op.execute('UPDATE STOCK SET IN_STOCK = -1 WHERE IN_STOC...
Method names for getting data [closed]
...ke get and fetch have
no specific semantic and are interpreted differently by different
people. Pick a semantic for a term, document what it is intended to
imply if the semantic is not clear and be consistent with its use.
words with vague or ambigious meanings are given different semantics by diffe...
Long-lasting FB access-token for server to pull FB page info
...ss Token that does not expire (with help from @Igy), here is a clear, step-by-step quide for all those looking to the same:
Make sure you are the admin of the FB page you wish to pull info from
Create a FB App (should be with the same user account that is the page admin)
Head over to the Facebook ...
Specifying and saving a figure with exact size in pixels
..._dpi), dpi=my_dpi)
So you basically just divide the dimensions in inches by your DPI.
If you want to save a figure of a specific size, then it is a different matter. Screen DPIs are not so important anymore (unless you ask for a figure that won't fit in the screen). Using the same example of the...
Fatal error: unexpectedly found nil while unwrapping an Optional values [duplicate]
...ueReusableCellWithIdentifier(identifier: String!) -> AnyObject! // Used by the delegate to acquire an already allocated cell, in lieu of allocating a new one.
That's determined by the exclamation mark after AnyObject:
AnyObject!
So, first thing to consider is, what is an "Implicitly Unwr...
What rules does Pandas use to generate a view vs a copy?
... from above is for .query; this will always return a copy as its evaluated by numexpr)
An indexer that gets on a multiple-dtyped object is always a copy.
Your example of chained indexing
df[df.C <= df.B].loc[:,'B':'E']
is not guaranteed to work (and thus you shoulld never do this).
Instead...
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
... executed is /bin/sh -c bash. This allowed Docker to implement RUN quickly by relying on the shell's parser.
Later on, people asked to be able to customize this, so ENTRYPOINT and --entrypoint were introduced.
Everything after ubuntu in the example above is the command and is passed to the entrypo...
How do you see the entire command history in interactive Python?
..., and I Cmd + K (cleared) my earlier commands. I can go through them one by one using the arrow keys. But is there an option like the --history option in bash shell, which shows you all the commands you've entered so far?
...
Practical usage of setjmp and longjmp in C
...
And in the footnote 248) it reads: "For example, by executing a return statement or because another longjmp call has caused a transfer to a setjmp invocation in a function earlier in the set of nested calls." So calling a longjmp funtion out of a function to a point further...
What is the difference between task and thread?
...s an asynchronous operation. Thread(s) are used to complete that operation by breaking the work up into chunks and assigning to separate threads.
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