homepage

OS: Windows 7 x86
Python: 2.6.4
An Entry with both Font and Foreground properties changed (i.e. not OS-default) does not display text set with textvariable.set method. 
Attached an example of such behavior.

The bug only appears if "Align" is not "Left".

Typo: align -> Justify

The bug doesn't seem to be Windows-specific - tested on Ubuntu 10.10 (Python 2.6.6)

I updated the script to 3k. Now the behaviour is very odd :
Python 2.7: works only if `justify="right"` is commented out.
Python 3.3: Shroedinger-like behaviour (sometimes dead, sometimes alive, nobody knows before we check) whith `justify="right"`
Looks like some kind of race-condition or something, so this results may only be relevant on my hardware (2 yo low-end PC).
I'm not a tkinter expert, so even if the app code looks good I need someone that knows tk to double-check if there is some oddities in the script before we go further.

I confirm this. The bug appears sporadically on 3.x.
When the entry displays text, self.entry1['textvariable'] is 'PY_VAR0'. When it does not, self.entry1['textvariable'] is '0' (actually the value of "text" parameter).
The bug is due to the fact that option "text" is applied after the option "textvariable". Due to string hash randomization it occurs in 50% on 3.3+ (and always or never on default 2.7, depending on other options used in this call). For work around this bug you should not use both "text" and "textvariable" keyword or dict parameters in one call. Probably it is worth to mention in the documentation (unfortunately the Tkinter documentation is almost non-existent).

Calm down for a moment. This is just incorrect usage of Entry. There is no "text" parameter documented for this class (see its docstring, for a quick reference on that). Also, there is a lot of Tkinter documentation, the official one at can be found at http://docs.python.org/2/library/tkinter.html, which includes links for further documentation.
This is actually unrelated to string hash randomization, it is only barely related to the unordered nature of the hash implementation. What actually happens is that the tk lib usually accepts abbreviations of parameter names. So specifying "text" and "textvariable" is the same for tk.

> So specifying "text" and "textvariable" is the same for tk.
Thanks for clarifying.

Thank you for the review, Guilherme.