Add __repr__ method

[MarkBaggett]

Hello. Thank you for this module. It is IMHO the best module available for parsing registry files. Would you please consider accepting this pull request to add a __repr__ method to the objects? This will make understanding variables in debugger watch lists, ipython, jupyter notebooks and other interactive python sessions much easier.

So we get this...

>> from Registry.Registry import Registry
>>> hive = Registry("NTUSER.DAT")
>>> hive
Registry(hive_name=??\C:\Users\Win10Lab\ntuser.dat, hive_type=HiveType.NTUSER)
>>> key = hive.open(r"Software\Microsoft\Windows\CurrentVersion\Run")
>>> key
RegistryKey(name=Run, path=ROOT\SOFTWARE\Microsoft\Windows\CurrentVersion\Run)
>>> key.values()
[RegistryValue(name=OneDrive, value="C:\Users\Win10Lab\AppData\Local\Microsoft\OneDrive\OneDrive.exe" /background, type=RegSZ)]**
>>> hive.root().subkeys()
[RegistryKey(name=AppEvents, path=ROOT\AppEvents), RegistryKey(name=AppXBackupContentType, path=ROOT\AppXBackupContentType), RegistryKey(name=Console, path=ROOT\Console), RegistryKey(name=Control Panel, path=ROOT\Control Panel), RegistryKey(name=Environment, path=ROOT\Environment), RegistryKey(name=EUDC, path=ROOT\EUDC), RegistryKey(name=Keyboard Layout, path=ROOT\Keyboard Layout), RegistryKey(name=Network, path=ROOT\Network), RegistryKey(name=Printers, path=ROOT\Printers), RegistryKey(name=SOFTWARE, path=ROOT\SOFTWARE), RegistryKey(name=System, path=ROOT\System)]

Instead of this..

>>> from Registry.Registry import Registry
>>> hive = Registry("NTUSER.DAT")
>>> hive
<Registry.Registry.Registry object at 0x7f76ca6bfc88>
>>> key = hive.open(r"Software\Microsoft\Windows\CurrentVersion\Run")
>>> key
<Registry.Registry.RegistryKey object at 0x7f76ca025470>
>>> key.values()
[<Registry.Registry.RegistryValue object at 0x7f76ca0252e8>]
>>> hive.root().subkeys()
[<Registry.Registry.RegistryKey object at 0x7f76ca0253c8>, <Registry.Registry.RegistryKey object at 0x7f76ca01d198>, <Registry.Registry.RegistryKey object at 0x7f76ca01dc88>, <Registry.Registry.RegistryKey object at 0x7f76ca01de10>, <Registry.Registry.RegistryKey object at 0x7f76ca01dc50>, <Registry.Registry.RegistryKey object at 0x7f76ca01dcf8>, <Registry.Registry.RegistryKey object at 0x7f76ca01dd68>, <Registry.Registry.RegistryKey object at 0x7f76ca01dba8>, <Registry.Registry.RegistryKey object at 0x7f76ca01d9e8>, <Registry.Registry.RegistryKey object at 0x7f76ca01d908>, <Registry.Registry.RegistryKey object at 0x7f76ca01d978>]

[MarkBaggett]

Updating code to pass CI testing.

Ok I removed the use of f-strings so that it also works in python2 and older versions of Python. I think this should make it past your CI testing now.

Thanks again for your consideration.

$ python2
Python 2.7.17 (default, Nov  7 2019, 10:07:09) 
[GCC 7.4.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from Registry.Registry import Registry
>>> hive=Registry("NTUSER.DAT")
>>> hive
Registry(hive_name="??\C:\Users\Win10Lab\ntuser.dat", hive_type="HiveType.NTUSER")
>>> key = hive.open(r"Software\Microsoft\Windows\CurrentVersion\Run")
>>> key
RegistryKey(name="Run", path="ROOT\SOFTWARE\Microsoft\Windows\CurrentVersion\Run")
>>> key.subkeys()
[]
>>> key.values()
[RegistryValue(name="OneDrive", value=""C:\Users\Win10Lab\AppData\Local\Microsoft\OneDrive\OneDrive.exe" /background", type="RegSZ")]
>>> hive.root().subkeys()
[RegistryKey(name="AppEvents", path="ROOT\AppEvents"), RegistryKey(name="AppXBackupContentType", path="ROOT\AppXBackupContentType"), RegistryKey(name="Console", path="ROOT\Console"), RegistryKey(name="Control Panel", path="ROOT\Control Panel"), RegistryKey(name="Environment", path="ROOT\Environment"), RegistryKey(name="EUDC", path="ROOT\EUDC"), RegistryKey(name="Keyboard Layout", path="ROOT\Keyboard Layout"), RegistryKey(name="Network", path="ROOT\Network"), RegistryKey(name="Printers", path="ROOT\Printers"), RegistryKey(name="SOFTWARE", path="ROOT\SOFTWARE"), RegistryKey(name="System", path="ROOT\System")]
>>> 

[williballenthin]

outstanding, thanks!