ModuleNotFoundError: No module named 'yaml'

[matoken]

Hello. I was looking for a static site generator and found this software. When I tried it, I found that it requires PyYAML on my environment. The environment is Debian sid amd64.

$ python3 tumblelog.py --template-filename tumblelog.html \
        --output-dir htdocs/ \
        --author 'Test' --name 'Test Blog' --description 'This is a test' \
        --blog-url 'http://localhost:8000/' --css steel.css \
        tumblelog.md
Traceback (most recent call last):
  File "/home/matoken/src/tumblelog/tumblelog.py", line 16, in <module>
    import yaml
ModuleNotFoundError: No module named 'yaml'

I was able to install it by following these steps.

$ git diff README.md
diff --git a/README.md b/README.md
index c73b036..4931be4 100644
--- a/README.md
+++ b/README.md
@@ -31,9 +31,10 @@ Then:
 git clone https://github.com/john-bokma/tumblelog.git
 cd tumblelog
 python3 -m venv venv
+source venv/bin/activate
 pip3 install commonmark
 pip3 install regex
-source venv/bin/activate
+pip3 install PyYAML
 mkdir htdocs