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How to write to an existing excel file without overwriting data (using pandas)?
...omething like this might work out:
import pandas
from openpyxl import load_workbook
book = load_workbook('Masterfile.xlsx')
writer = pandas.ExcelWriter('Masterfile.xlsx', engine='openpyxl')
writer.book = book
## ExcelWriter for some reason uses writer.sheets to access the sheet.
## If you leave ...
Install NPM into home directory with distribution nodejs package (Ubuntu)
... up a package root in my homedir to hold the Node "global" packages:
$ NPM_PACKAGES="$HOME/.npm-packages"
$ mkdir -p "$NPM_PACKAGES"
Set NPM to use this directory for its global package installs:
$ echo "prefix = $NPM_PACKAGES" >> ~/.npmrc
Configure your PATH and MANPATH to see commands i...
Is there any difference between DECIMAL and NUMERIC in SQL Server?
...both be NUMERIC(x,y), or both be DECIMAL(x,y).
– Doug_Ivison
Jan 2 '14 at 0:30
7
...
Using `textField:shouldChangeCharactersInRange:`, how do I get the text including the current typed
...the accepted answer, the following should work in Swift 3:
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
let newString = NSString(string: textField.text!).replacingCharacters(in: range, with: string)
return...
Deleting Objects in JavaScript
...s an indepth explination: perfectionkills.com/understanding-delete/#firebug_confusion
– Tarynn
Mar 28 '13 at 20:13
2
...
What is Weak Head Normal Form?
...es for an expression to be in WHNF:
A constructor: constructor expression_1 expression_2 ...
A built-in function with too few arguments, like (+) 2 or sqrt
A lambda-expression: \x -> expression
In other words, the head of the expression (i.e. the outermost function application) cannot be eval...
How to delete a word and go into insert mode in Vim?
...I edited the answer from telling about "co{" to "ca{" as reminded by jinxed_coders comment. My old customization implements "(a) <>" commands as "(o)uter <>" commands.
– Kaali
Sep 7 '09 at 4:34
...
Hash and salt passwords in C#
...onfirmPassword(string password)
{
byte[] passwordHash = Hash(password, _passwordSalt);
return _passwordHash.SequenceEqual(passwordHash);
}
Before implementing any of this however, check out this post. For password hashing you may want a slow hash algorithm, not a fast one.
To that end th...
Good ways to sort a queryset? - Django
...
What about
import operator
auths = Author.objects.order_by('-score')[:30]
ordered = sorted(auths, key=operator.attrgetter('last_name'))
In Django 1.4 and newer you can order by providing multiple fields.
Reference: https://docs.djangoproject.com/en/dev/ref/models/querysets/#ord...
Android Eclipse - Could not find *.apk
...Build uncheck 'Skip packaging and dexing until export or launch'
Check JAVA_HOME is set correctly. Follow the steps in this article
If you complete the above list, and still haven't solved the issue, please leave a comment, or if you find something else that works, feel free to edit the answer and...