大约有 30,000 项符合查询结果（耗时：0.0598秒） [XML]
What is the most “pythonic” way to iterate over a list in chunks?
... the recipes section of Python's itertools docs:
from itertools import zip_longest
def grouper(iterable, n, fillvalue=None):
args = [iter(iterable)] * n
return zip_longest(*args, fillvalue=fillvalue)
Example
In pseudocode to keep the example terse.
grouper('ABCDEFG', 3, 'x') --> 'ABC...
Build vs new in Rails 3
...zy.
– ClosureCowboy
Feb 11 '11 at 1:32
41
@henrym It looks like in 3.2.6 clients.new and clients....
Reading file contents on the client-side in javascript in various browsers
...an Campbell
275k5454 gold badges343343 silver badges324324 bronze badges
...
Renaming table in rails
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
What is the difference between JDK and JRE?
...it.
– Carl Smotricz
Oct 30 '14 at 1:32
1
So basically JDK includes a compiler (like Javac) to com...
How does this checkbox recaptcha work and how can I use it?
...mething together using gstatic.com/recaptcha/api2/r20140903161709/recaptcha__en.js if you search for "g-recaptcha", "I'm not a robot" or "checkbox" you can find the code that is implementing it there.
– Ian M
Sep 9 '14 at 12:26
...
Parse usable Street Address, City, State, Zip from a string [closed]
...,RDI,RecordType,BuildingDefaultIndicator,CongressionalDistrict,Footnotes
1,32,79,"2299 Lewes-Georgetown Hwy, Georgetown, DE 19947",N,,,,,,,,,,,,,,,,,,,,,,
2,81,119,"11522 Shawnee Road, Greenwood DE 19950",Y,0,,11522 Shawnee Rd,,Greenwood DE 19950-5209,Greenwood,DE,19950,Sussex,AABB,199505209226,Y,N,...
How does facebook, gmail send the real time notification?
...
Alistair EvansAlistair Evans
32.3k66 gold badges3030 silver badges4848 bronze badges
...
How to secure MongoDB with username and password
...ndru Petrescu
3,09222 gold badges1919 silver badges2323 bronze badges
1
...
How to convert SQL Query result to PANDAS Data Structure?
...r. 2015
As noted below, pandas now uses SQLAlchemy to both read from (read_sql) and insert into (to_sql) a database. The following should work
import pandas as pd
df = pd.read_sql(sql, cnxn)
Previous answer:
Via mikebmassey from a similar question
import pyodbc
import pandas.io.sql as psql
cn...