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Convert date to datetime in Python
...That is because what it does is first retrieving the minimum value representable by datetime and then getting its time component. Incidentally, datetime.min = datetime(MINYEAR, 1, 1, tzinfo=None) and has a time of 00:00:00. However, I think it is cleaner to explicitly create a 00:00:00 time either t...
Drop unused factor levels in a subsetted data frame
...things up afterwards. Try the following before loading your data with read.table or read.csv:
options(stringsAsFactors = FALSE)
The disadvantage is that you're restricted to alphabetical ordering. (reorder is your friend for plots)
...
List all the modules that are part of a python package?
Is there a straightforward way to find all the modules that are part of a python package? I've found this old discussion , which is not really conclusive, but I'd love to have a definite answer before I roll out my own solution based on os.listdir().
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List all indexes on ElasticSearch server?
I would like to list all indexes present on an ElasticSearch server. I tried this:
22 Answers
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Dictionary vs Object - which is more efficient and why?
...ots__ = ('i', 'l')
def __init__(self, i):
self.i = i
self.l = []
all = {}
for i in range(1000000):
all[i] = Obj(i)
test_obj.py:
class Obj(object):
def __init__(self, i):
self.i = i
self.l = []
all = {}
for i in range(1000000):
all[i] = Obj(i)
test_dict.py:
all = {}
for i in...
How to clear all the jobs from Sidekiq?
...ean" all data stored in redis, it is equivalent to a drop database or drop table in relational databases.
– jonathanccalixto
Jun 18 '17 at 18:49
1
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Draw Circle using css alone [duplicate]
...It is reasonable to drop support for it, as according to caniuse.com/usage-table, IE 8 currently has a 0.18% share of usage, and most modern websites have done so. The border-radius property is now supported pretty much across the board (caniuse.com/#search=border-radius), so should be the accepted...
How do I truncate a .NET string?
...t its length is not longer than a given value. I am writing to a database table and want to ensure that the values I write meet the constraint of the column's datatype.
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Convert Pandas column containing NaNs to dtype `int`
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My use case is munging data prior to loading into a DB table:
df[col] = df[col].fillna(-1)
df[col] = df[col].astype(int)
df[col] = df[col].astype(str)
df[col] = df[col].replace('-1', np.nan)
Remove NaNs, convert to int, convert to str and then reinsert NANs.
It's not pretty b...
How to get current user, and how to use User class in MVC5?
...ith mvc5 (membership 2): User.Identity.GetUserId() is different with id in table [AspNetUsers]. So Jakub Arnold and Rok is correct way
– Grey Wolf
Sep 26 '14 at 7:18
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