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Unable to load Private Key. (PEM routines:PEM_read_bio:no start line:pem_lib.c:648:Expecting: ANY PR
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Open the key file in Notepad++ and verify the encoding. If it says UTF-8-BOM then change it to UTF-8. Save the file and try again.
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Nested classes' scope?
... def inner_var(self):
return Outer.outer_var
This isn't quite the same as similar things work in other languages, and uses global lookup instead of scoping the access to outer_var. (If you change what object the name Outer is bound to, then this code will use that object the next ti...
Shell - How to find directory of some command?
... a builtin, a function, an alias or an external executable. If the latter, it will show each place it appears in your PATH.
bash$ type -a lshw
lshw is /usr/bin/lshw
bash$ type -a ls
ls is aliased to `ls --color=auto'
ls is /bin/ls
bash$ zsh
zsh% type -a which
which is a shell builtin
which is /usr/...
Android gradle: buildtoolsVersion vs compileSdkVersion
...ript compiler, etc...) that you want to use. For each API level (starting with 18), there is a matching .0.0 version.
At IO 2014, we release API 20 and build-tools 20.0.0 to go with it.
Between Android releases we will release updates of the compilers, and so we'll release version .0.1, .0.2, etc....
Bootstrap select dropdown list placeholder
I am trying to make a dropdown list that contains a placeholder. It doesn't seem to support placeholder="stuff" as other forms do. Is there a different way to obtain a placeholder in my dropdown?
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Create a dictionary with list comprehension
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Use a dict comprehension:
{key: value for (key, value) in iterable}
Note: this is for Python 3.x (and 2.7 upwards). Formerly in Python 2.6 and earlier, the dict built-in could receive an iterable of key/value pairs, so you can pass it a list comprehension or generator expression. ...
How do I add comments to package.json for npm install?
... for comments ... If you want to use a multiple line comment, you can use either an array, or multiple "//" keys.
When using your usual tools (npm, yarn, etc) multiple "//" keys will be removed. This survives:
{ "//": [
"first line",
"second line" ] }
This will not survive:
{ "//": "thi...
JOIN queries vs multiple queries
...his is way too vague to give you an answer relevant to your specific case. It depends on a lot of things. Jeff Atwood (founder of this site) actually wrote about this. For the most part, though, if you have the right indexes and you properly do your JOINs it is usually going to be faster to do 1 tri...
Conditionally ignoring tests in JUnit 4
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The JUnit way is to do this at run-time is org.junit.Assume.
@Before
public void beforeMethod() {
org.junit.Assume.assumeTrue(someCondition());
// rest of setup.
}
You can do it in a @Before method or in the test its...
How do I deserialize a JSON string into an NSDictionary? (For iOS 5+)
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It looks like you are passing an NSString parameter where you should be passing an NSData parameter:
NSError *jsonError;
NSData *objectData = [@"{\"2\":\"3\"}" dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *json = [N...