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1. • • Therefore, the ".%3f" in python formats a float data type in such a way that only the 3 numbers after the decimal point is included in the output and the other numbers after that are ignored. Instead of 3, you can specify any number after the "."
     www.askpython.com › python › string

     Understanding the Print Format %.3f in Python - AskPython

2. Top results related to what is a script letter 3f format

   • What is a script that will accept a username as a command line argument and will display only that user's account information?

     Top Answer

     Answered Jul 06, 2013 · 3 votes

     Why you shouldn't do it

     There are several command-line programs that get you information from /etc/passwd, /etc/groups and other account information such as reading .plan, .project and .pgpkey

     Typically you do not WANT to use /etc/passwd directly because there may be other databases like NIS+ or LDAP maintaining your account information on the system.

     Software that gets you information about account:

     finger — Almost guaranteed to be present everywhere, appeared in BSD 3.0 finger is a network aware program and is serviced by fingerd(8) daemon for remote fingering.

     `pinky — A lightweight finger program (no networking support I think) part of GNU coreutils

     id – Available on most System V compatible environments (if I recall correctly?)

     who – display login information, it will also display if users are accepting messages over the talk/write protocol and also if they will accept talk write requests on your control terminal (see mesg(1) for details)

     Okay maybe you want to do it for fun

     Here is a quick and dirty way that is limited to local use:

     #!/bin/bash-user="$1"--awk -F: '/^'$user'/ { print "Login: " $1 " UID: " $3 " GID: " $4 \ " GECOS: " $5 " Home Directory: " $6 " Shel: " $7 }' /etc/passwd-

     You can similarly access .plan etc. from the user's home directory.

     Read up passwd(5) man page, man 5 passwd to get details of the password structure:

     Check all answers on Stack Overflow

     1/5

   • What is a good way to call a python script from a Google Sheets spreadsheet?

     Top Answer

     Answered Mar 28, 2019 · 2 votes

     Google Apps Script. You will need to use Apps Script to add a button or menu item to the sheet and then trigger your python script. You will have to make your python code accessible through some web api and call that api via Apps Script using the UrlFetch service.

     Check all answers on Stack Overflow

     2/5

   • What is the best way to tell if a character is a letter or number in Java without using regexes?

     Top Answer

     Answered Mar 21, 2018 · 379 votes

     Character.isDigit(string.charAt(index)) (JavaDoc) will return true if it's a digit Character.isLetter(string.charAt(index)) (JavaDoc) will return true if it's a letter

     Other Answers

     Answered Nov 17, 2016 · 38 votes

     I'm looking for a function that checks only if it's one of the Latin letters or a decimal number. Since char c = 255, which in printable version is ├ and considered as a letter by Character.isLetter(c). This function I think is what most developers are looking for:

     private static boolean isLetterOrDigit(char c) { return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9');}

     Other Answers

     Answered Apr 20, 2018 · 31 votes

     As the answers indicate (if you examine them carefully!), your question is ambiguous. What do you mean by "an A-z letter" or a digit?

     • ["If you want to know if a character is a Unicode letter or digit, then use the Character.isLetter and Character.isDigit methods.",""]
     • ["If you want to know if a character is an ASCII letter or digit, then the best thing to do is to test by comparing with the character ranges 'a' to 'z', 'A' to 'Z' and '0' to '9'.",""]

     Note that all ASCII letters / digits are Unicode letters / digits ... but there are many Unicode letters / digits characters that are not ASCII. For example, accented letters, cyrillic, sanskrit, ...

     The general solution is to do this:

     Character.UnicodeBlock block = Character.UnicodeBlock.of(someCodePoint);

     and then test to see if the block is one of the ones that you are interested in. In some cases you will need to test for multiple blocks. For example, there are (at least) 4 code blocks for Cyrillic characters and 7 for Latin. The Character.UnicodeBlock class defines static constants for well-known blocks; see the javadocs.

     Note that any code point will be in at most one block.

     Check all answers on Stack Overflow

     3/5

   • What is a channel in a .wav file format?Do all channels play simultaneaously when a wav file is played?

     Top Answer

     Answered Dec 21, 2012 · 19 votes

     In each frame in wav there are channels. If you have stereo sound, then each frame contains two samples (left and right).

     • Do all channels play along when I play some audio file?

     Yes, unless you chose to play only one channel. Then samples for second channel are ignored.

     • If a channel is made up of frames,are all channels equal in length(bit wise)?

     Yes.

     Check all answers on Stack Overflow

     4/5

   • what is the regex for first character is a letter?

     Top Answer

     Answered Aug 11, 2014 · 13 votes

     Your regex is not right:

     /^[A-z][A-z0-9]+$/-

     You need to use:

     /^[A-Za-z][A-Za-z0-9]*$/

     As range [A-z] consists of non alpha characters also like [, ], ^ etc. (basically anything from 91-96 ASCII code).

     Also better to change quantifier + by * since your input can contain just a single character.

     Check all answers on Stack Overflow

     5/5

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3. www.askpython.com › python › stringUnderstanding the Print Format %.3f in Python - AskPython

   www.askpython.com › python › string

   • Cached

   Mar 30, 2023 · In Python, the “%.3f” format specifier is a method for formatting floating-point numbers to display only three decimal places. This is achieved using the ‘%’ operator along with the ‘%.nf’ format specifier, where ‘n’ determines the number of decimal places.

4. stackoverflow.com › questions › 51328193Understanding the print format %.3 in python - Stack Overflow

   stackoverflow.com › questions › 51328193

   • Cached

   Jul 14, 2018 · %.3f f: Floating point, which means that the value that is going to be printed is a real number..3 is for the number of decimals after the point. That means that the real value to be printed will have 3 digits after the point.

   Code sample

   In [1]: print('Slope: %.3f' % 1.123)

   Slope: 1.123

   In [2]: print('Slope: %.3f' % 1.12345)

   Slope: 1.123

   In [3]: print('Slope: %.3f' % 1.1)...

   See more on stackoverflow

5. realpython.com › python-formatted-outputA Guide to the Newer Python String Format Techniques

   realpython.com › python-formatted-output

   • Cached

   Python can format an object as a string using three different built-in functions: str() repr() ascii() By default, the Python .format() method uses str(), but in some instances, you may want to force .format() to use one of the other two. You can do this with the <conversion> component of a replacement field.

6. learnpython.com › blog › python-string-formattingPython’s String format() Cheat Sheet | LearnPython.com

   learnpython.com › blog › python-string-formatting

   • Cached

   May 30, 2022 · Introducing the String.format () Function. The String.format () function is a powerful and flexible string formatting tool introduced in Python 3. (It is also available in versions 2.7 and onward.) It essentially functions by linking placeholders marked by curly braces {} and the formatting data inside them to the arguments passed to the function.

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8. alvinalexander.com › programming › printf-formatA `printf` format reference page (cheat sheet) (C, Java ...

   alvinalexander.com › programming › printf-format

   • Cached

   Apr 14, 2024 · A summary of printf format specifiers. Here’s a quick summary of the available printf format specifiers: Controlling integer width with printf. The %3d specifier is used with integers, and means a minimum width of three spaces, which, by default, will be right-justified: Left-justifying printf integer output.

9. realpython.com › python-f-stringsPython's F-String for String Interpolation and Formatting

   realpython.com › python-f-strings

   • Cached

   Oct 18, 2023 · Python f-strings provide a quick way to interpolate and format strings. They’re readable, concise, and less prone to error than traditional string interpolation and formatting tools, such as the .format() method and the modulo operator ( % ). An f-string is also a bit faster than those tools!

10. developer.mozilla.org › en-US › docsPercent-encoding - MDN Web Docs Glossary: Definitions of Web ...

    developer.mozilla.org › en-US › docs

    • Cached

    Jul 20, 2023 · Percent-encoding is a mechanism to encode 8-bit characters that have specific meaning in the context of URLs. It is sometimes called URL encoding. The encoding consists of substitution: A '%' followed by the hexadecimal representation of the ASCII value of the replace character.