Python Forum

I have some problem with my function. I want to open image(filedialog) and display the image into label.

def openImg():
    fileimg = filedialog.askopenfile(mode = 'rb+', initialdir = "/Desktop/",title = "Select file",filetypes = (("jpeg files","*.jpg"),("png", "*.png")))
    content = fileimg.read()
    img = PhotoImage(file = content)
    my_label = Label(image = img).grid(row = 3, column = 0)

Error output:
_tkinter.TclError: couldn't open "ÿØÿà►JFIF☺☻☺☺ÿí
Photoshop 3.08BIM♦♦g∟☻(bFBMD01000a8d0100001b080000461200004c140000bc150000151f0000292d00008c2e0000de300000ca320000654a0000ÿÛC♠♦♣♠♣♦♠♠♣♠♠
►


¶♫☼♀►↨¶↑↑↨¶▬▬→↔%▼→∟▬▬↓▼-(0%()(ÿÛC☺

‼

‼(→▬→((((((((((((((((((((((((((((((((((((((((((((((((((ÿÂ☺@☺@♥"☺◄☺☻◄☺ÿÄ∟☺♣☺☺☺♥☺☻♦♣ÿÄ→☺♥☺☺☺☺☺☻♥♦♣♠ÿÄ→☺♥☺☺☺☺☺☻♥♦♣♠ÿÚ♀♥☺◄☻◄☺Îr'O©Í♣à¢fAp§b¢5#PB\Wº[sé)ý|ÌçF²+ðõ↔QWR~ôX2ªJq)4¹ºÈH¼¤ÂÌ">¶Ðy®ãô×
l25Y=ïX↔â©È
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¦õN¬¼H~ÝQyy2z♣↔edÀVcy­¶·S§z¼¨ÛË´Rôѵ5©9_w b²;Z>⌂B GH&µ&Á!Ã♦J¬I¤ØHõiS·4°▼K÷r}ÝÁÝÜ↔ÝÀ*[þD
y↔Ìêë↑☺M¤Æó¥Äæ õzé2íyéípû▲⌂DPá♥>ÉáZLÈ0Æó'$±∟µoVµZ▬;nnj°>Y♫▲>TKáÆ☺bOLSJ¤WKÖÑôå¶òñì
etc..

Have you tried to determine where the error is happening? First I would do this:

def openImg():
    fileimg = filedialog.askopenfile(mode = 'rb+', initialdir = "/Desktop/",title = "Select file",filetypes = (("jpeg files","*.jpg"),("png", "*.png")))

    print(type(fileimg), fileimg)
    return

    content = fileimg.read()
    img = PhotoImage(file = content)
    my_label = Label(image = img).grid(row = 3, column = 0)

If fileimg is a file I would move the print and return to see what you are getting back for content.

If that looks good I would move things down and look at img.

I think you are going to find that you are providing the wrong kind of argument to one of the function calls. Hint Hint

Probably I found the error:

img = PhotoImage(file = content)
#_tkinter.TclError: couldn't open " ....#ÿÙ": filename is invalid on this platform
print(type(img),img)

However, I'm not sure how can I fix it :(

(Oct-28-2020, 06:16 PM)deanhystad Wrote: [ -> ]Have you tried to determine where the error is happening? First I would do this:

def openImg():
    fileimg = filedialog.askopenfile(mode = 'rb+', initialdir = "/Desktop/",title = "Select file",filetypes = (("jpeg files","*.jpg"),("png", "*.png")))

    print(type(fileimg), fileimg)
    return

    content = fileimg.read()
    img = PhotoImage(file = content)
    my_label = Label(image = img).grid(row = 3, column = 0)

If fileimg is a file I would move the print and return to see what you are getting back for content.

If that looks good I would move things down and look at img.

I think you are going to find that you are providing the wrong kind of argument to one of the function calls. Hint Hint

PhotoImage asks for a file. Why are you reading the file and passing the contents?

If I pass 'fileimg' directly to the PhotoImage(file = fileimg), I'm getting error ( no such file ). So my thought was first to store it in 'memory' and then pass it to photoimage :|
With print(type(content),content) it will read the image in bytes <class 'bytes'>. Content suppose to be the Image file that I open it with filedialog. I have only 1-2 months expirence with python, I'm not sure if I can find the solution by myself.

Update:
img = PhotoImage(content)
now is not taking the image from file, but I'm getting another TypeError.
#TypeError: __str__ returned non-string (type bytes)
#<class 'tkinter.PhotoImage'>

(Oct-28-2020, 08:11 PM)deanhystad Wrote: [ -> ]PhotoImage asks for a file. Why are you reading the file and passing the contents?

Read the fine manual. Guessing what the arguments are is not working

(Oct-29-2020, 12:39 AM)deanhystad Wrote: [ -> ]Read the fine manual. Guessing what the arguments are is not working

I couldn't find anything that could help me. I can easily open txt file and display it in label, but for image is just not going to work. :|
My last try is below..its terrible. I give up on this.

Tkinter photoimage doesn't return anything on a google search? We must be on different internets. Try passing the file name.

(Oct-29-2020, 05:57 AM)buran Wrote: [ -> ]https://effbot.org/tkinterbook/photoimage.htm

I was testing my code with jpg image, which is not supported by tkinter. I rewrite my code dozen times because of the "_tkinter.TclError: couldn't recognize image data". the code is ok now