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Saving interactive Matplotlib figures
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pickle now works on MPL figures, so this can be done and appears to work reasonable well - almost like a Matlab ".fig" figure file. See my answer below (for now?) for an example of how to do it.
– Demis
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Getting distance between two points based on latitude/longitude
...("Result:", distance)
print("Should be:", 278.546, "km")
The distance is now returning the correct value of 278.545589351 km.
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What's the difference between ES6 Map and WeakMap?
...eference, ever. That way garbage collection wouldn't be possible. I don't know if weak references are impossible or just don't make sense. But either way the key needs to be something that can be referenced weakly.
– Andreas Linnert
Jan 8 '16 at 14:00
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How can I join elements of an array in Bash?
...when the delimiter starts with a hyphen (and maybe others I can't think of now). You can of course fix these (replace backslashes by double backslashes and use printf -- "$d%s"), but at some point you'll feel that you're fighting against the shell instead of working with it. That's why, in my answer...
Max or Default?
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Although DefaultIfEmpty is now implemented in LINQ to SQL, this answer remains better IMO, as using DefaultIfEmpty results in a SQL statement 'SELECT MyCounter' that returns a row for every value being summed, whereas this answer results in MAX(MyCount...
Linq Syntax - Selecting multiple columns
... you suggest how to properly write this expression: select new { (DateTime.Now - debt.ClaimDate), debt.Amount}; ? It throws an error: Invalid anonymous type member declarator
– Dainius Kreivys
Sep 19 '16 at 13:13
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Importing a CSV file into a sqlite3 database table using Python
...n to a file on disk is left as an exercise for the reader ... but there is now a two-liner made possible by the pandas library
df = pandas.read_csv(csvfile)
df.to_sql(table_name, conn, if_exists='append', index=False)
shar...
Should all Python classes extend object?
...p, that may be another explanation. And of course, if it's Python 3.x only now, it's fine to get rid of the object references.
– blubberdiblub
Jan 21 '17 at 12:13
add a commen...
How to convert SQL Query result to PANDAS Data Structure?
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Edit: Mar. 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
imp...
What is a NullPointerException, and how do I fix it?
...n the most trivial cases, the compiler will catch the problem and let you know that "num may not have been initialized," but sometimes you may write code that does not directly create the object.
For instance, you may have a method as follows:
public void doSomething(SomeObject obj) {
//do someth...