Before the ```$ pip3 install -r requirements.txt -r requirements/dev.txt``` installation step would succeed I needed to add the following dependencies:
```$ sudo aptitude install libxml2-dev```
```$ sudo aptitude install libxslt1-dev```
The Error without the dependencies ended with:
```
In file included from src/lxml/lxml.etree.c:515:0:
src/lxml/includes/etree_defs.h:14:31: fatal error: libxml/xmlversion.h: No such file or directory
#include "libxml/xmlversion.h"
^
compilation terminated.
Compile failed: command 'x86_64-linux-gnu-gcc' failed with exit status 1
creating tmp
cc -I/usr/include/libxml2 -c /tmp/xmlXPathInitm_7rr3ky.c -o tmp/xmlXPathInitm_7rr3ky.o
/tmp/xmlXPathInitm_7rr3ky.c:1:26: fatal error: libxml/xpath.h: No such file or directory
#include "libxml/xpath.h"
^
compilation terminated.
*********************************************************************************
Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?
*********************************************************************************
error: command 'x86_64-linux-gnu-gcc' failed with exit status
```
In the "make localcompile" step I had to do
```$ sudo aptitude install gettext```
before it would succeed.
There was a reference to a demo event ("/mrmcd/2015/") it should probably be /bigevents/2017/ .
* add basic instrumentation possibilities to pretix
* make tabs to spaces
* apply flake8
* implement upstreams suggestions, round 1
* adjust naming of redis-connection
* address noredis
* add view for metrics
* implement HTTP basic auth in front of metrics-endpoint
* rename labelset
* make flake8-clean
* implement upstreams suggestions, round 2
* correct minor slipups
* fix missing return
* let isort add an empty line
* implement test for counter
* implement upstream suggestions, round 3
* correct typo
* implement first test for view
* finish view-test
* fix deprecated keyword
* implement upstream-suggestions, round 4
* implement test for gauge
* test exceptions as well
* add db-decorator
