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    <p>I also tried this the way heinzderaugust suggested at first:</p> <pre><code> button[i] = ttk.Button(loadProject, text=data_files[i], command = lambda i=data_files[i]:load(i)).grid(column=1, row=i, sticky=W) </code></pre> <p>I was also able to solve this by using a class as the intermediary part of the callback: (This class was inserted inside viewProject )</p> <pre><code>class Command: def __init__(self, callback, *args, **kwargs): self.callback = callback self.args = args self.kwargs = kwargs def __call__(self): return(self.callback(*self.args, **self.kwargs)) </code></pre> <p>Then I changed your button definition to:</p> <pre><code>button[i] = ttk.Button(loadProject, text=data_files[i], command = Command(load,data_files[i])).grid(column=1, row=i, sticky=W) </code></pre> <p>And finally I changed the load function to accept a argument:</p> <pre><code>def load(myFile): spamReader = csv.reader(open(myFile)) for row in spamReader: a = list(row) ttk.Label(loadProject, text=(a[0])).grid(column=4, row=0, sticky=W) ttk.Label(loadProject, text=("\n"+a[1])).grid(column=4, row=1, sticky=W) ttk.Label(loadProject, text=("\n"+a[2])).grid(column=4, row=2, sticky=W) ttk.Label(loadProject, text=(a[3])).grid(column=4, row=3, sticky=W) ttk.Label(loadProject, text=(a[4])).grid(column=4, row=4, sticky=W) ttk.Label(loadProject, text=("\n"+a[5])).grid(column=4, row=5, sticky=W) ttk.Label(loadProject, text=("\n"+a[6])).grid(column=4, row=6, sticky=W) ttk.Label(loadProject, text=("\n\n"+a[7])).grid(column=4, row=7, sticky=W) </code></pre> <p>I am unsure which would be best practice, but both do work.<br><br> (Certainly the lambda approach does sort of seem more 'pythonic')<br><br> Source: <a href="https://code.activestate.com/recipes/66521-avoiding-lambda-in-writing-callback-functions/" rel="nofollow">https://code.activestate.com/recipes/66521-avoiding-lambda-in-writing-callback-functions/</a></p>
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    1. POHow to make a button open a specific .csv file using Python Tkinter?
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    1. USNiall Byrne
    1. USNiall Byrne
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    1. POHow to make a button open a specific .csv file using Python Tkinter?
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    1. COThanks, I've got it working now. I went with the second one because it seems a bit easier to understand for me.
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