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How to get the IP address of the docker host from inside a docker container
...p://dl-cdn.alpinelinux.org/alpine/v3.3/community/x86_64/APKINDEX.tar.gz
v3.3.1-119-gb247c0a [http://dl-cdn.alpinelinux.org/alpine/v3.3/main]
v3.3.1-59-g48b0368 [http://dl-cdn.alpinelinux.org/alpine/v3.3/community]
OK: 5855 distinct packages available
(1/4) Installing openssl (1.0.2g-r0)
(2/4) Instal...
Truncating floats in Python
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return '.'.join([i, (d+'0'*n)[:n]])
This is valid in Python 2.7 and 3.1+. For older versions, it's not possible to get the same "intelligent rounding" effect (at least, not without a lot of complicated code), but rounding to 12 decimal places before truncation will work much of the time:
def...
iOS UIImagePickerController result image orientation after upload
I am testing my iPhone application on an iOS 3.1.3 iPhone. I am selecting/capturing an image using a UIImagePickerController :
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Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
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Behavior differences
Some differences on Bash 4.3.11:
POSIX vs Bash extension:
[ is POSIX
[[ is a Bash extension¹
regular command vs magic
[ is just a regular command with a weird name.
] is just an argument of [ that prevents further arguments from being used.
U...
Paperclip::Errors::MissingRequiredValidatorError with Rails 4
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I couldn't get any of these solutions to work either. I tried Paperclip 3.1, but couldn't then my app kept telling me my image file extensions weren't approved, even though they were jpg.
I finally found success with version 3.5.1.
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UnboundLocalError on local variable when reassigned after first use
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Here are two links that may help
1: docs.python.org/3.1/faq/programming.html?highlight=nonlocal#why-am-i-getting-an-unboundlocalerror-when-the-variable-has-a-value
2: docs.python.org/3.1/faq/programming.html?highlight=nonlocal#how-do-i-write-a-function-with-output-parameters-...
proper hibernate annotation for byte[]
I have an application using hibernate 3.1 and JPA annotations. It has a few objects with byte[] attributes (1k - 200k in size). It uses the JPA @Lob annotation, and hibernate 3.1 can read these just fine on all major databases -- it seems to hide the JDBC Blob vendor peculiarities (as it should do...
What causes imported Maven project in Eclipse to use Java 1.5 instead of Java 1.6 by default and how
...;artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<executions>
<execution>
<id>default-compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
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Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?
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Checkout GlassFish 3.1! Built on top of the modular, Java EE 6 based GlassFish v3 kernel, version 3.1 delivers clustering, centralized administration and high availability.
Refer to http://blogs.oracle.com/nazrul/entry/glassfish_3_1 for more ...
Twitter bootstrap float div right
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Inaimathi
13.1k77 gold badges4141 silver badges8686 bronze badges
answered Feb 11 '13 at 9:40
Billy MoatBilly Mo...