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Fix issue in python sample source in Tutorials.md

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Updated python sample source in Tutorials to make it work. Before this change problem was:

```
C:\Users\user>python mermaid.py
Traceback (most recent call last):
  File "mermaid.py", line 3, in <module>
    graphbytes = graph.encode("ascii")
NameError: name 'graph' is not defined
```
This commit is contained in:
david weil
2020-12-13 19:10:06 -03:00
committed by GitHub
parent 7cc2daa696
commit bdb2afb1dc
1 changed files with 5 additions and 7 deletions
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12
docs/Tutorials.md
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@@ -39,8 +39,9 @@ This is also working with colab and jupyter lab notebooks.
```python ```python
import base64 import base64
import requests, io
graphbytes = graph.encode("ascii") from PIL import Image
import matplotlib.pyplot as plt
graph = """ graph = """
graph LR; graph LR;
@@ -51,16 +52,13 @@ graph LR;
E--> B & C & D; E--> B & C & D;
""" """
graphbytes = graph.encode("ascii")
base64_bytes = base64.b64encode(graphbytes) base64_bytes = base64.b64encode(graphbytes)
base64_string = base64_bytes.decode("ascii") base64_string = base64_bytes.decode("ascii")
import requests, io
from PIL import Image
import matplotlib.pyplot as plt
img = Image.open(io.BytesIO(requests.get('https://mermaid.ink/img/' + base64_string).content)) img = Image.open(io.BytesIO(requests.get('https://mermaid.ink/img/' + base64_string).content))
plt.imshow(img) plt.imshow(img)
``` ```
**Output** **Output**
![image](img/python-mermaid-integration.png) ![image](img/python-mermaid-integration.png)