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How to pretty print nested dictionaries?
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I'm not sure how exactly you want the formatting to look like, but you could start with a function like this:
def pretty(d, indent=0):
for key, value in d.items():
print('\t' * indent + str(key))
if isinstance(value, dict):
pretty(value, ...
ipython reads wrong python version
...se the terminal and open a new one. since the PATH is cached by the shell for efficiency. this is how I got this solution working for me. see: conda.pydata.org/docs/…
– parsethis
Dec 18 '16 at 18:23
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A python class that acts like dict
...he instance's __dict__ - which essentially means you're creating two dicts for every instance.
– Aaron Hall♦
Jan 8 '17 at 0:39
8
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How to identify numpy types in python?
... And if you want pandas DataFrames to count as numpyish, add an or to test for that. And so on. The point is, you have to know what you're actually asking for when you want to do something as unusual as loose manual type switching, but once you know, it's easy to implement.
– a...
How can I time a code segment for testing performance with Pythons timeit?
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You can use time.time() or time.clock() before and after the block you want to time.
import time
t0 = time.time()
code_block
t1 = time.time()
total = t1-t0
This method is not as exact as timeit (it does not average several runs) but it is straightforward.
time...
if A vs if A is not None:
...f object() is not None: pass is ~0.135 usec. Anyway, you should not use performance to choose between these two, but rather look at the differences in how they work, since they are not equivalent.
– Lauritz V. Thaulow
Oct 19 '11 at 8:02
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Asynchronous method call in Python?
I was wondering if there's any library for asynchronous method calls in Python . It would be great if you could do something like
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Django dynamic model fields
...define their own data fields (via the admin) to collect additional data in forms and report on the data. The latter bit makes JSONField not a great option, so instead I have the following solution:
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How can I read SMS messages from the device programmatically in Android?
...he result to prevent exception
do {
String msgData = "";
for(int idx=0;idx<cursor.getColumnCount();idx++)
{
msgData += " " + cursor.getColumnName(idx) + ":" + cursor.getString(idx);
}
// use msgData
} while (cursor.moveToNext());
} else {
/...
Difference between a theta join, equijoin and natural join
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A theta join allows for arbitrary comparison relationships (such as ≥).
An equijoin is a theta join using the equality operator.
A natural join is an equijoin on attributes that have the same name in each relationship.
Additionally, a natu...