I have switched to US-International with AltGr dead keys. Took me 3 weeks to adapt to the new layout - but man what an investment! I had learned before this German and French layouts - it was a loss of time if I look back now. On Linux you have this layout almost on all distributions, on Windows you have to install it separately. Concerning the accents: with the US-International you have all the French accents + a lot of more - I can now write French, German and Turkish with a single keyboard, without changing the layout! And it is possible even to write capital letters with accents: ÇÉÈÂ. If you need to sometimes work with the keyboards from other people - at least the US layout is ALWAYS installed (in Windows most of the time you can switch to it with Alt+LeftShift). The downside is that there are not many Laptop vendors that allow you to chose the US-International layout, this is one more argument for me to stick with ThinkPads.

From the accents that you posted it looks like you use AZERTY layout. Do the switch to US-International and you will not regret. The AZERTY is awful for developers (and even for normal writers).