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Python Data Type Q&A » string » convert 

1. Python: converting strings for use with ctypes.c_void_p()    stackoverflow.com

given a string:

msg="hello world"
How can I define this as a ctypes.c_void_p() data type? the following code yields a "cannot be converted to pointer" exception:
data=ctypes.c_void_p(msg)
data is required to be a void* type in ...

2. string conversion in Python    stackoverflow.com

I'm using Python 2.5. The DLL I imported is created using the CLR. The DLL function is returning a string. I'm trying to apply "partition" attribute to it. I'm not able to ...

3. need help - bit-field conversion    stackoverflow.com

I want to convert strings to bit-fields.Also,convert them to binary and then use. Need help with this..help me ..

4. How to convert a list of longs into a comma separated string in python    stackoverflow.com

I'm new to python, and have a list of longs which I want to join together into a comma separated string. In PHP I'd do something like this:

$output = implode(",", $array)
In Python, ...

5. How do I convert a string to a double in Python?    stackoverflow.com

I would like to know how to convert a string containing digits to a double.

6. Converting from a string to boolean in Python?    stackoverflow.com

Does anyone know how to do convert from a string to a boolean in Python? I found this link. But it doesn't look like a proper way to do ...

7. Python: How do I write a list to file and then pull it back into memory (dict represented as a string convert to dict) later?    stackoverflow.com

More specific dupe of 875228—Simple data storing in Python. I have a rather large dict (6 GB) and I need to do some processing on it. I'm trying out several ...

8. Convert list of lists to delimited string    stackoverflow.com

How do I do the following in Python 2.2 using built-in modules only? I have a list of lists like this:
[['dog', 1], ['cat', 2, 'a'], ['rat', 3, 4], ['bat', 5]] And from ...

9. Convert Python exception information to string for logging    stackoverflow.com

I try logging exceptions in Python 2.5, but I can't do it. All formatting functions do something else than what I want. I came up with this:

def logexception(type, value, traceback):
  print ...

10. How can I convert a list of strings into numeric values?    stackoverflow.com

How can I convert a list of strings (each of which represents a number, i.e. [‘1’, ‘2’, ‘3’]) into numeric values.

11. In Python, how do I transform a string into a file?    stackoverflow.com

There is a read-only library function that takes a file as an argument. But I have a string. How do I convert a string to a file, that if you read the file ...

12. Convert a Python list with strings all to lowercase or uppercase    stackoverflow.com

I have a python list variable that contains strings. Is there a python function that can convert all the strings in one pass to lowercase and vice versa, uppercase? Regards

13. Convert and merge strings into a list in Python    stackoverflow.com

In Python I have four strings that include the formatting of a list:

line1 ="['a.b.c','b.c.a','c.d.e']"
line2 ="['def','efg']"
line3 ="['f']"
line4 ="['g']"
How do I merge them all so I get a valid Python list such as:
SumLine ...

14. String Conversion    stackoverflow.com

s='This is sample'
i need to convert like this
s='"This is sample"'
output="This is sample" how to do this in dynamic
Thanks in advance

15. convert string list to list in python    stackoverflow.com

I was wondering what the simplest way to convert a string list like x =u'[ "A","B","C" , " D"]' ...

16. Convert single-quoted string to double-quoted string    stackoverflow.com

I want to check whether the given string is single- or double-quoted. If it is single quote I want to convert it to be double quote, else it has to be ...

17. What is the most elegant way of converting the string 'a.pdf' to 'a.jpg'?    stackoverflow.com

I would like my code to look beautiful
Thanks in advance..

18. Convert string in Class name (from appengine datastore to class)    stackoverflow.com


I'm using appengine to develop an application. Ideally I would like to define a new kind (called Recipe) like this:

class Recipe(db.Model):
    ingredients = db.ListProperty(type)
    quantities ...

19. Convert dbus.String to normal string    stackoverflow.com

I am using dbus to get the current playing song from Songbird Media Player & Metadata is also taken from dbus object. The line where error comes is:-

audio_file = MP3(current_playing_track['location'], ID3=ID3)
The error ...

20. How can I convert string to "command" in Python?    stackoverflow.com

How can I convert this so it could execute?

Traceback (most recent call last):
  File "C:\Users\Shady\Desktop\tet.py", line 14, in <module>
    exec test
  File "<string>", line 1
  ...

21. Converting a string into a list in Python    stackoverflow.com

I have a text document that contains a list of numbers and I want to convert it to a list. Right now I can only get the entire list in the ...

22. convert a list of booleans to string    stackoverflow.com

How do I convert this:

[True, True, False, True, True, False, True]
Into this:
'AB DE G'
Note: C and F are missing in the output because the corresponding items in the input list are ...

23. How to convert list into a string?    stackoverflow.com

I have extracted some data from the file and want to write it in the file 2 but the program says 'sequence item 1: expected string, list found', I want ...

24. Is there a way to convert code to a string and vice versa in Python?    stackoverflow.com

The original question was: Is there a way to declare macros in Python as they are declared in C:

#define OBJWITHSIZE(_x) (sizeof _x)/(sizeof _x[0])
Here's what I'm trying to find out: Is there a way ...

25. convert as rouund values [String(Math.round(65/30))]    stackoverflow.com

String(Math.round(values/30))..am having values 65.i want the answer for that 3 not 2.1... wat is the solution

26. convert into string using twisted python    stackoverflow.com

How can i convert this input into a string?


GET /learn/tutorials/351079-weekend-project-secure-your-system-with-port-knocking?name=MyName&married=not+single&male=yes HTTP/1.1
Host: merch1.localhost
User-Agent: Mozilla/5.0 (Windows;en-GB; rv:1.8.0.11) Gecko/20070312 Firefox/1.5.0.11
Accept: text/xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language: en-gb,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive

I NEED THIS AS OUTPUT
GET /learn/tutorials/351079-weekend-project-secure-your-system-with-port-knocking?name=MyName&married=not+single&male=yes HTTP/1.1 Host: merch1.localhost ...

27. How to convert colors into strings with the same size?    stackoverflow.com

I'm converting color values to string values, however when I get 0, the string is too short and I have to manually add "00" after it. Whats the most elegant way to ...

28. string conversion    stackoverflow.com

I’ve got a long string object which has been formatted like this

myString = “[name = john, family = candy, age = 72],[ name = jeff, family = Thomson, age = 24]”
of ...

29. converting a list to strings in python    stackoverflow.com

I've written a function in python that returns a list, for example [(1,1),(2,2),(3,3)] etc But i want the output as a string so i can replace the comma with another char so the ...

30. converting string to list    stackoverflow.com

How to convert string to list

str = '[(testing1@testing.com, amit, laspal,1,100,50), 
        (testing2@testing.com,None,None,None,None,None), 
        (testing3@testing.com,laspal, amit,None,None,None)]'
I want ...

31. Convert a python dict to a string and back    stackoverflow.com

I am writing a program that stores data in a dictionary object, but this data needs to be saved at some point during the program execution and loaded back into the ...

32. converting string to long in python    stackoverflow.com

Python provides a convenient method long() to convert string to long:

long('234') 
; converts '234' into a long If user keys in 234.89 then python will raise an error message:
ValueError: invalid literal for ...

33. Python - convert to ?    stackoverflow.com

I'm using libxml2 and libxslt to process XML files. The return value is of type instance but I need to have a UTF-8 static string.

styledoc = libxml2.parseFile(style_file)
style = libxslt.parseStylesheetDoc(styledoc)
doc = libxml2.parseDoc(xml_data.encode("UTF-8")) ...

34. How to convert a time to a string    stackoverflow.com

I am using the date time lib to get the current date. After obtaining the current date I need to convert the obtained date to in to a string format. Any ...

35. python convert str to list    stackoverflow.com

How do i convert

'[update, /CoaddedRegriddedFrame[1]/OBJECT[1]/text()[1], Centaurus-AB]'
to a list of strings, eg.
   ['update', '/CoaddedRegriddedFrame[1]/OBJECT[1]/text()[1]', 'Centaurus-AB']

36. Iterate through parts of a string    stackoverflow.com

I have string in the form

[3339:1.6101369,1062:1.5,5751:1.5,6376:1.5,  ...  ]
I want to iterate through the comma separated key-value pairs. What is the best or shortest way to do this?

37. How to convert list to string    stackoverflow.com

Possible Duplicate:
How to convert list into a string?
Hi there, How to convet list to an string. thanks

38. Converting String to List    stackoverflow.com

Possible Duplicate:
Converting a string that represents a list, into an actual list object.
hi, i have a string in this format:
>>> x="(174,185)"
>>> x
'(174,185)'
how can i convert ...

39. How to convert a string properly instead of MutableString    stackoverflow.com

Im trying to incorporate my encryption program into a chat program. But i cant pass a MutableString with Socket. So how would I properly covert my MutableString into a proper string?

import ...

40. converting strings to numeric    stackoverflow.com

What's a simple way to convert stings into numerics:
from:

['3.65e+03', '1.14e+04', '1.35e+04', '1.46e+04']
to:
[3.65e+03, 1.14e+04, 1.35e+04, 1.46e+04]
Thanks.

41. Python - convert comma separated string into reducing string list    stackoverflow.com

Given a Python string like this:

location_in = 'London, Greater London, England, United Kingdom'
I would like to convert it into a list like this:
location_out = ['London, Greater London, England, United Kingdom',
  ...

42. input-validation & string conversion    stackoverflow.com

I have a script, which take input from the user and I want to validate the input first then convert the user-input to a predefined format. The input should be like ...

43. Why does Python not perform type conversion when concatenating strings?    stackoverflow.com

In Python, the following code produces an error:

a = 'abc'
b = 1
print(a + b)
(The error is "TypeError: cannot concatenate 'str' and 'int' objects"). Why does the Python interpreter not automatically try using ...

44. How to convert an H:MM:SS time string to seconds in Python?    stackoverflow.com

Basically I have the inverse of this problem: Python Time Seconds to h:m:s I have a string in the format H:MM:SS (always 2 digits for minutes and seconds), and I need ...

45. How to convert numeric string ranges to a list in Python    stackoverflow.com

I would like to be able to convert a string such as "1,2,5-7,10" to a python list such as [1,2,5,6,7,10]. I looked around and found this, but I was wondering ...

46. Convert string to lowercase in python    stackoverflow.com

Is there any way to convert an entire user inputed string from uppercase, or even part uppercase to lowercase. eg. Kilometers --> kilometers. I am writing a program that doesn'st work ...

47. Python - convert list of IP CIDR strings to a human-readable glob    stackoverflow.com

In netaddr module there are functions that convert either an ip range (iprange_to_globs(start, end)), or a CIDR (cidr_to_glob(cidr)) to a glob. A glob is a "user friendly form ...

48. How do I convert a base64 encoded string to a Stream that I can use with FileStorage from werkzeug.datastructures?    stackoverflow.com

I need this because I am using AJAX to transfer a file, hence I get an image file in a base64 encoded string. I would like to convert this nicely to ...

49. use type() information to cast values stored as strings    stackoverflow.com

In my application I have generated a number of values (three columns, of type int, str and datetime, see example below) and these values are stored in a flat file as ...

50. in python how can i convert a string to a list    stackoverflow.com

lets say i have :

my_args = ["QA-65"]
as the desired result but in my function, i have:
            m = re.search("([a-zA-Z]+-\d+)",line)
   ...

51. Converting string to digits in Python    stackoverflow.com

I have a string:

x = "12.000"
And I want it to convert it to digits. However, I have used int, float, and others but I only get 12.0 and i want to ...

52. Asking a list from a user then convert it to string in Python    stackoverflow.com

I need help for my homework. First I need to ask for a list from a user then I need to convert it to string. Then program ask another list for converting. ...

53. Python - convert string to list    stackoverflow.com

Possible Duplicate:
String to list in Python
i have a string like this :
states = "Alaska Alabama Arkansas American Samoa Arizona California Colorado"
and I ...

55. How to convert string to long?    bytes.com

58. need help converting a list into a string or vice versa    bytes.com

what if your variable "s" was 10, such that s is always one digit less than from the lists inside the list of lists. because i entered s as 10 and my "data" was at [[0, 1, 0], [0, 1, 0], [1, 1, 0]] but it said 'Variable is not in the list.' but "10" is found from within all of ...

59. converting a list to a string    python-forum.org

60. Convert a string into a value?    python-forum.org

Code: Select all import re regex = r''' (?P\d+)-(?P\w+)-(?P\d+)\s # dd-sss-dd (?P\d+):(?P\d+):(?P\d+)\s # dd:dd:dd (?PAM|PM)''' ...

61. Converting a list item to a string    python-forum.org

62. string to list conversion    python-forum.org

63. Converting a string to timestamp    python-forum.org

Hi, I'm working on an alarmclock program, that will interface with spotify to make me up every morning with some sweet, sweet reggae. The first problem I encountered is how to make a valid timestamp that python can understand, from a string. The program will ask "What time do you want to wake up?" And I'll enter something like "7:45" How ...

64. List to string conversion    python-forum.org

Hi, I have a list that I need to insert into a sqlite database. I am new to Python so I don't have working with list down yet. I have this list. [u'Andy Jay Powell', [u'A. J. Powell', u'A.J. Powell', u'A.J.P.', u'AJP', u'Andy J Powell', u'Andy J. Powell', u'Andy Jay Powellv', u'Andy Powell'], [u'http://www.andyjaypowell.de/', u'http://www.myspace.com/andyjaypowell'], [u'25 Style', u'Andreas Paul', u'Antonio Baresi', ...

65. convert string to list    python-forum.org

66. Converting from String to list -- Python 3.1    python-forum.org

I know in Python 2.7 that you could convert from a string to a list of characters by calling the list() function with your string that you wanted converted. This does not seem to work anymore in Python 3.1 It returns TypeError: 'list' object is not callable. Anyone have any idea if there is some other way of doing this is ...

67. string conversion and file output    python-forum.org

Dear All, I want to output the processed data onto a file the output data is a JSON format converted from a csv file. The program runs fine the Print command prints the output on the screen however i want to output onto a file to use it with some other application. The string conversion doesn't work, probably because the syntax ...

68. cast/convert string to long    python-forum.org

69. string to py type converter    python-forum.org

71. Convert From string to numerical value    python-forum.org

72. Converting String to Code    python-forum.org

I have a program (It is still in brainstorming mode, so there isn't actually any real code.) that requires a conversion of a string into Python code. Pretty much, here's the dilemma: I have twenty-six variables, a through z, or if you prefer, a1-26. Depending on user input, I have to put a number into different variables, and I don't want ...

73. Converting String to Boolean    python-forum.org

avisser has a good point -- if the string is coming from inside your program, it would be a lot easier just to pass True and False directly instead of "True" and "False". If the string is user input, however, then the "if" statement you described is probably the best way to go.

74. Convert time to string    python-forum.org

75. String Conversion vs Calculation    python-forum.org

@HenriAB: How would using eval() be different from using int()? Also, I though eval() was supposed to be one of those things you should very rarely (if ever) use, like input()? @Bill: Yes, if it was stored as a string, then str() shouldn't be very memory intensive at all, right? Actually, doing everything with strings does seem easier here. Thanks for ...

76. list to string conversion problem    python-forum.org

77. problem converting datatype to string - using Ableton API    python-forum.org

Code: Select all for track in LiveUtils.getTracks(): for clipSlot in track.clip_slots: if clipSlot: ...

78. Converting String to Dictonary    python-forum.org

There is probably a much better way to do this Code: Select all def str_dict(string): dict={} for pair in string.split(','): key_val=pair.split(':') print key_val ...

79. Convert string to constant/method?    python-forum.org

def SetOption(self, *args): print args print "args[0] = %s"%(args[0]) print "pycurl.URL = %i"%(pycurl.URL) print "self.pycurlobj.URL = %i"%(self.pycurlobj.URL) print "pycurl.args[0] = pycurl.%s"%(args[0]) print ...

80. convert string to value SOLVED    python-forum.org

Python 2.4.3 (#2, Oct 6 2006, 07:52:30) [GCC 4.0.3 (Ubuntu 4.0.3-1ubuntu5)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> foo = '[1,2,3]' >>> [int(x) for x in foo] Traceback (most recent call last): File "", line 1, in ? ValueError: invalid literal for int(): [ >>> map(int.foo) Traceback (most recent call last): ...

81. How to convert to string ?    python-forum.org

83. How to convert all strings from a map to upper case?    python-forum.org

Hello, Well, let's see. I'd loop over the keys of the dictionary, and then access the list of lists using myDict[myKey]. Then you'll need to iterate over the sublists. Then you'll need to iterate over the indices of the sublists and for each index reset the value of the corresponding sublist at the same index to the "upper case" version of ...

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