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How to read a large file - line by line?
I want to iterate over each line of an entire file. One way to do this is by reading the entire file, saving it to a list, then going over the line of interest. This method uses a lot of memory, so I am looking for an alternative.
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mvn clean install vs. deploy vs. release
...the clean phase and then the install phase sequentially:
clean: removes files generated at build-time in a project's directory (target by default)
install: installs the package into the local repository, for use as a dependency in other projects locally.
mvn deploy
This command invokes the...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...har_t may be more useful. It's essentially required on Windows (e.g., some files simply cannot be opened without using wchar_t filenames), though Windows is the only platform where this is true as far as I know (so maybe we can think of wchar_t as 'Windows_char_t').
In hindsight wchar_t is clearly ...
Using os.walk() to recursively traverse directories in Python
...on
import os
# traverse root directory, and list directories as dirs and files as files
for root, dirs, files in os.walk("."):
path = root.split(os.sep)
print((len(path) - 1) * '---', os.path.basename(root))
for file in files:
print(len(path) * '---', file)
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How to validate an Email in PHP?
...$email) || is_numeric($email) || is_bool($email) || is_float($email) || is_file($email) || is_dir($email) || is_int($email))
return false;
else
{
$email=trim(strtolower($email));
if(filter_var($email, FILTER_VALIDATE_EMAIL)!==false) return $email;
else
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Find a Pull Request on Github where a commit was originally created
...13, 2014, this should be straightforward:
For example:
You can see for the file hakimel/reveal.js/plugin/markdown/markdown.js, my contribution now comes with a reference to the PR #734 it originated.
This comes from Linking merged pull requests from commits:
We've been including the containing bra...
How to check if a symlink exists
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-L returns true if the "file" exists and is a symbolic link (the linked file may or may not exist). You want -f (returns true if file exists and is a regular file) or maybe just -e (returns true if file exists regardless of type).
According to the ...
Windows batch file file download from a URL
I am trying to download a file from a website (ex. http://www.example.com/package.zip ) using a Windows batch file. I am getting an error code when I write the function below:
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How to modify a text file?
I'm using Python, and would like to insert a string into a text file without deleting or copying the file. How can I do that?
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Download file from web in Python 3
I am creating a program that will download a .jar (java) file from a web server, by reading the URL that is specified in the .jad file of the same game/application. I'm using Python 3.2.1
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