473,597 Members | 2,413 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

binary number format ? format character %b or similar.

I'm was wanting to format a positive integer in binary,
and not finding it--to my surprise--I rolled my own version.

Is this already in python, or have I missed it somewhere?

I have Googled around a bit, and found a few threads on
the subject, but they all seem to fizzle out.

(e.g. : INPUT 35, OUTPUT "100011" )
Jun 27 '08 #1
4 1350
I don't know if you found this example:
http://www.daniweb.com/code/snippet285.html

--
I'm was wanting to format a positive integer in binary,
and not finding it--to my surprise--I rolled my own version.

Is this already in python, or have I missed it somewhere?

I have Googled around a bit, and found a few threads on
the subject, but they all seem to fizzle out.

(e.g. : INPUT 35, OUTPUT "100011" )

Jun 27 '08 #2
weheh wrote:
I don't know if you found this example:
http://www.daniweb.com/code/snippet285.html
Thanks for that. The offerings are very similar to the
algorithms I wrote myself.

It wasn't the solution I was after,really; that's
easy. It was whether anything had found its way into
the standard library.
Jun 27 '08 #3
On Jun 22, 4:07�pm, Ken Starks <stra...@lampsa cos.demon.co.uk wrote:
weheh wrote:
I don't know if you found this example:
http://www.daniweb.com/code/snippet285.html

Thanks for that. The offerings are very similar to the
algorithms I wrote myself.

It wasn't the solution I was after,really; that's
easy. It was whether anything had found its way into
the standard library.
Isn't that coming in Python 3.0?

You could also use gmpy, which has a lot of
other bit-functionality in addition to displaying
them.
>>for i in xrange(8):
print 'i:',gmpy.digit s(i,2).zfill(8) ,
print '# of 1-bits:',gmpy.pop count(i),
print 'find LS 1-bit:',gmpy.scan 1(i),
print 'bit difference:',gm py.hamdist(i,2* *8-1)
i: 00000000 # of 1-bits: 0 find LS 1-bit: -1 bit difference: 8
i: 00000001 # of 1-bits: 1 find LS 1-bit: 0 bit difference: 7
i: 00000010 # of 1-bits: 1 find LS 1-bit: 1 bit difference: 7
i: 00000011 # of 1-bits: 2 find LS 1-bit: 0 bit difference: 6
i: 00000100 # of 1-bits: 1 find LS 1-bit: 2 bit difference: 7
i: 00000101 # of 1-bits: 2 find LS 1-bit: 0 bit difference: 6
i: 00000110 # of 1-bits: 2 find LS 1-bit: 1 bit difference: 6
i: 00000111 # of 1-bits: 3 find LS 1-bit: 0 bit difference: 5
Jun 27 '08 #4
Mensanator wrote:
On Jun 22, 4:07�pm, Ken Starks <stra...@lampsa cos.demon.co.uk wrote:
>weheh wrote:
>>I don't know if you found this example:
http://www.daniweb.com/code/snippet285.html
Thanks for that. The offerings are very similar to the
algorithms I wrote myself.

It wasn't the solution I was after,really; that's
easy. It was whether anything had found its way into
the standard library.

Isn't that coming in Python 3.0?
Thanks for the tip! following which, I found
information at:

http://docs.python.org/dev/3.0/libra...#formatstrings
>
You could also use gmpy, which has a lot of
other bit-functionality in addition to displaying
them.
Yes, that'll be useful. Thanks again.
Jun 27 '08 #5

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

18
22591
by: Bern | last post by:
how to specifiy a binary number in c++? hex numbers are specified by 0x prefix
103
48576
by: Steven T. Hatton | last post by:
27.4.2.1.4 Type ios_base::openmode Says this about the std::ios::binary openmode flag: *binary*: perform input and output in binary mode (as opposed to text mode) And that is basically _all_ it says about it. What the heck does the binary flag mean? -- If our hypothesis is about anything and not about some one or more particular things, then our deductions constitute mathematics. Thus mathematics may be defined as the subject in...
8
2165
by: bearophileHUGS | last post by:
Hello, I have four things to ask or to suggest, sorry if they seem basic or already discussed. ------------------- I am still ignorant about Tkinter. This little program, after pressing the "Go" eats more and more RAM, is it normal? Can it be avoided? (In normal programs this is isn't a real problem). ! import Tkinter
8
9509
by: Yeow | last post by:
hello, i was trying to use the fread function on SunOS and ran into some trouble. i made a simple test as follows: i'm trying to read in a binary file (generated from a fortran code) that contains the following three floating-point numbers: 1.0 2.0 3.0
28
2767
by: wwj | last post by:
void main() { char* p="Hello"; printf("%s",p); *p='w'; printf("%s",p); }
26
4287
by: Patient Guy | last post by:
Has anyone written code that successfully manipulates binary file data using Javascript? It might---and in the case of doing I/O, will---make use of browser- specific functions (ActiveX/COM with Internet Explorer, XPCOM/XPConnect with Mozilla/Firefox). I am writing client-side code that will generate binary data for producing a GIF file through an OBJECT element. (The GIF is an image of a line and points on a two-axis plot.)
6
2714
by: | last post by:
Hi all, is there a better way to stream binary data stored in a table in sql 2005 to a browser in .net 2.0? Or is the code same as in .net 1.1? We noticed that in certain heavy load scenarios, every now and then the client would timeout and have to re-initiate the request... TIA!
3
3836
by: masood.iqbal | last post by:
Hi, Kindly excuse my novice question. In all the literature on ifstream that I have seen, nowhere have I read what happens if you try to read a binary file using the ">>" operator. I ran into the two problems while trying to read a binary file. 1). All whitespace characters were skipped 2). Certain binary files gave a core dump
3
8839
by: zgfareed | last post by:
My program converts decimal numbers from to binary and hexadecimal. I am having trouble with my output which is supposed to be in a certain format. Binary needs to be in the format of XXXX XXXX for numbers 0 to 255. What am doing wrong or not doing with my output? Source code: // code #include <iostream>
0
7959
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, well explore What is ONU, What Is Router, ONU & Routers main usage, and What is the difference between ONU and Router. Lets take a closer look ! Part I. Meaning of...
0
7883
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
8263
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
1
8021
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
8254
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
0
5421
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
3876
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
0
3917
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
2393
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.