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Error: “dictionary update sequence element #0 has length 1; 2 is required” on Django 1.4
...pdate([(1, 2)])
>>> d
{1: 2}
>>>
>>> d.update('hello_some_string')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: dictionary update sequence element #0 has length 1; 2 is required
>>>
If you give the sequence a...
Decode Base64 data in Java
...ode using the "basic" encoding:
import java.util.Base64;
byte[] bytes = "Hello, World!".getBytes("UTF-8");
String encoded = Base64.getEncoder().encodeToString(bytes);
byte[] decoded = Base64.getDecoder().decode(encoded);
The documentation for java.util.Base64 includes several more methods for co...
What is Ruby's double-colon `::`?
...C++ (and Ruby) use :: for namespace resolution such as std::cout << "Hello World!";
– Jerry Fernholz
Jun 9 '10 at 20:29
...
Tool to generate JSON schema from JSON data [closed]
...
Crashes for something like {"hello": "world","num": 42} but looks promising-
– DBX12
Feb 2 '18 at 11:24
4
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How to manually expand a special variable (ex: ~ tilde) in bash
...@]}"
printf '%s\n' "${result%:}"
}
...used as...
path=$(expandPath '~/hello')
Alternately, a simpler approach that uses eval carefully:
expandPath() {
case $1 in
~[+-]*)
local content content_q
printf -v content_q '%q' "${1:2}"
eval "content=${1:0:2}${content_q}"
...
Why do we need the “finally” clause in Python?
...
try: #x = Hello + 20 x = 10 + 20 except: print 'I am in except block' x = 20 + 30 else: print 'I am in else block' x += 1 finally: print 'Finally x = %s' %(x)
– Abhijit Sahu
...
Copy / Put text on the clipboard with FireFox, Safari and Chrome
... document.execCommand('copy');
}
And now to copy copyStringToClipboard('Hello World')
If you noticed the setData line, and wondered if you can set different data types the answer is yes.
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JavaScript: Create and save file [duplicate]
...
setTimeout("create('Hello world!', 'myfile.txt', 'text/plain')");
function create(text, name, type) {
var dlbtn = document.getElementById("dlbtn");
var file = new Blob([text], {type: type});
dlbtn.href = URL.createObjectURL(file);
d...
sed command with -i option failing on Mac, but works on Linux
...use -i an extension for the backup files is required. Try:
sed -i .bak 's/hello/gbye/g' *
Using GNU sed the extension is optional.
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Is there a better way to run a command N times in bash?
...
If you're using the zsh shell:
repeat 10 { echo 'Hello' }
Where 10 is the number of times the command will be repeated.
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