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UITextField text change event
...ke func textField: UITextField, didChangeText text: String would have been included, but... (gives guys at Apple a dirty look)
– Brandon A
Apr 6 '17 at 2:25
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method of iterating over sqlalchemy model's defined columns?
...pper__ attribute to get at the class mapper. To get all mapped attributes (including relationships):
obj.__mapper__.attrs.keys()
If you want strictly column names, use obj.__mapper__.column_attrs.keys(). See the documentation for other views.
https://docs.sqlalchemy.org/en/latest/orm/mapping_api...
How to fix “no valid 'aps-environment' entitlement string found for application” in Xcode 4.3?
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Convert timestamp in milliseconds to string formatted time in Java
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How can I create directories recursively? [duplicate]
...y exists (depending on your needs....).
starting from python 3.4 (which includes the pathlib module) you can do this:
from pathlib import Path
path = Path('/home/dail/first/second/third')
path.mkdir(parents=True)
starting from python 3.5 mkdir also has an exist_ok flag - setting it to True w...
Keyboard Interrupts with python's multiprocessing Pool
...method rather than join? If that's the case, perhaps it would be better to include this code in your blog post, since you can then guarantee that all the workers have completed before attempting to join.
– bboe
Mar 29 '12 at 19:16
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Adding a directory to the PATH environment variable in Windows
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Don't include quotes with this. For example call PATH %PATH%;C:\Program Files\... instead of PATH "%PATH%;C:\Program Files\..."
– icc97
Mar 2 '17 at 17:34
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About catching ANY exception
...ch is recommended because it provides more detail about each exception. It includes:
Line number for your code
File name
The actual error in more verbose way
The only drawback is tracback needs to be imported.
import traceback
def bad_method():
try:
sqrt = 0**-1
except Exceptio...
Using an ORM or plain SQL? [closed]
...sistence API, basically the standardized ORM API for Java/J2EE/EJB), which includes Hibernate, EclipseLink, Toplink, OpenJPA and others, I'll share some of my observations.
ORMs are not fast. They can be adequate and most of the time adequate is OK but in a high-volume low-latency environment they...