converting array to and from string in python 3.7.2

[srm]

I am not able to convert array to string using fromstring() method
my code is:

from array import * my_char_array = array('c', ['g','e','e','k'])

Error:
Traceback (most recent call last): File "<pyshell#1>", line 1, in <module> my_char_array = array('c', ['g','e','e','k']) ValueError: bad typecode (must be b, B, u, h, H, i, I, l, L, q, Q, f or d)

[perfringo]

I think that error message can't be clearer (can one observe 'c' in allowed typecodes?)

One can always do:

>>> import array >>> help(array.array) Help on class array in module array: class array(builtins.object) | array(typecode [, initializer]) -> array | | Return a new array whose items are restricted by typecode, and | initialized from the optional initializer value, which must be a list, | string or iterable over elements of the appropriate type. | | Arrays represent basic values and behave very much like lists, except | the type of objects stored in them is constrained. The type is specified | at object creation time by using a type code, which is a single character. | The following type codes are defined: | | Type code C Type Minimum size in bytes | 'b' signed integer 1 | 'B' unsigned integer 1 | 'u' Unicode character 2 (see note) | 'h' signed integer 2 | 'H' unsigned integer 2 | 'i' signed integer 2 | 'I' unsigned integer 2 | 'l' signed integer 4 | 'L' unsigned integer 4 | 'q' signed integer 8 (see note) | 'Q' unsigned integer 8 (see note) | 'f' floating point 4 | 'd' floating point 8 | | NOTE: The 'u' typecode corresponds to Python's unicode character. On | narrow builds this is 2-bytes on wide builds this is 4-bytes. | | NOTE: The 'q' and 'Q' type codes are only available if the platform | C compiler used to build Python supports 'long long', or, on Windows, | '__int64'. | | Methods: | | append() -- append a new item to the end of the array | buffer_info() -- return information giving the current memory info | byteswap() -- byteswap all the items of the array | count() -- return number of occurrences of an object | extend() -- extend array by appending multiple elements from an iterable | fromfile() -- read items from a file object | fromlist() -- append items from the list | frombytes() -- append items from the string | index() -- return index of first occurrence of an object | insert() -- insert a new item into the array at a provided position | pop() -- remove and return item (default last) | remove() -- remove first occurrence of an object | reverse() -- reverse the order of the items in the array | tofile() -- write all items to a file object | tolist() -- return the array converted to an ordinary list | tobytes() -- return the array converted to a string | | Attributes: | | typecode -- the typecode character used to create the array | itemsize -- the length in bytes of one array item | /.../

[DeaD_EyE]

array('B', b'geek')

B for unsigned byte. Using the fact that array takes an iterable and iterating over bytestrings return integers.

---

By the way, the star import is a bad habbit.
Use instead:

from array import array

Imports from modle array the name array. In this case array is a function.

[srm]

I tried all options but no type code is understanding character data.......

[perfringo]

I am not able to convert array to string
...
I tried all options

You haven't defined what you want.

Either this:

>>> import array >>> array.array('u', ['g', 'e', 'e', 'k']) array('u', 'geek')

or something along this line:

>>> ''.join(array.array('u', ['g', 'e', 'e', 'k'])) 'geek'

[snippsat]

Is there any reason why you use array and not list(common way in most cases)?
Usage of array look at this answer.

>>> lst = ['g','e','e','k'] >>> lst ['g', 'e', 'e', 'k'] >>> type(lst) <class 'list'> >>> >>> ''.join(lst) 'geek'