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Make xargs execute the command once for each line of input
...without the newline) to the command as a single argument, then this is the best UNIX-compatible way to do it:
... | tr '\n' '\0' | xargs -0 -n1 ...
GNU xargs may or may not have useful extensions that allow you to do away with tr, but they are not available on OS X and other UNIX systems.
Now fo...
Why does Pycharm's inspector complain about “d = {}”?
... In my case that type of rewriting is not possible, since each dictionary item that is created (but the first one) depends on the previous dictionary item created. So they have to be assigned to the dictionary one by one rather than every item at the same time. However, PyCharm still complains and ...
Difference between Hashing a Password and Encrypting it
...all the user passwords stored in your database by decryption. "This is the best option I got", a software developer may scream, but is there a better way?
Cryptographic hash function (one-way-only)
Yes there is, may be you have missed the point here. Did you notice that there is no requirement to ...
How to print a groupby object
...
Simply do:
grouped_df = df.groupby('A')
for key, item in grouped_df:
print(grouped_df.get_group(key), "\n\n")
This also works,
grouped_df = df.groupby('A')
gb = grouped_df.groups
for key, values in gb.iteritems():
print(df.ix[values], "\n\n")
For selective...
Delete element in a slice
... chars = append(chars[:i], chars[i+1:]...)
i-- // form the remove item index to start iterate next item
}
}
fmt.Printf("%+v", chars)
Source: https://dinolai.com/notes/golang/golang-delete-slice-item-in-range-problem.html
...
Programmatically scroll to a specific position in an Android ListView
...Expand() as:
and use setSelectionFromTop() method which
Sets the selected item and positions the selection y pixels from the top edge of the ListView. (If in touch mode, the item will not be selected but it will still be positioned appropriately.) (android docs)
yourlist.setOnGroupExpandListen...
PHP cURL custom headers
...RX , $vars is an array of your post data , sth like this : $vars = array('item1' => 'value1','item2' => 'value2');
– Meisam
May 19 '18 at 18:23
...
How to create a self-signed certificate for a domain name for development?
... further down).
Test the certificate
To test your certs, Firefox is your best choice. (Believe me, I'm a Chrome fan-boy myself, but FF is better in this case.)
Here are the reasons:
Firefox uses its own SSL cache, which is purged on shift-reload. So any changes to the certs of your local webs...
Python module for converting PDF to text [closed]
...you can copy/paste this to try it
from pdfminer.converter import LTTextItem, TextConverter
from pdfminer.pdfparser import PDFDocument, PDFParser
from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter
class CsvConverter(TextConverter):
def __init__(self, *args,...
Case in Select Statement
...tNumber, Name, "Price Range" =
CASE
WHEN ListPrice = 0 THEN 'Mfg item - not for resale'
WHEN ListPrice < 50 THEN 'Under $50'
WHEN ListPrice >= 50 and ListPrice < 250 THEN 'Under $250'
WHEN ListPrice >= 250 and ListPrice < 1000 THEN 'Under $1000'
ELSE 'Ove...