Lazy load matplotlib

[joamatab]

• lazy load matplotlib
• make port.orientation None marker to be a cross.
• add settings label can ignore settings
• better message for symlinks in gf tool install
• fix write_cells code. Add a test.
• better mutability error message fix issue
• add YouTube Video link to docs

[sourcery-ai]

Sourcery Code Quality Report

❌  Merging this PR will decrease code quality in the affected files by 0.26%.

Quality metrics	Before	After	Change
Complexity	7.89 ⭐	7.76 ⭐	-0.13 👍
Method Length	67.71 🙂	68.55 🙂	0.84 👎
Working memory	10.42 😞	10.52 😞	0.10 👎
Quality	62.95% 🙂	62.69% 🙂	-0.26% 👎

Other metrics	Before	After	Change
Lines	3646	3722	76

Changed files	Quality Before	Quality After	Quality Change
gdsfactory/component.py	70.42% 🙂	70.36% 🙂	-0.06% 👎
gdsfactory/layers.py	68.18% 🙂	68.20% 🙂	0.02% 👍
gdsfactory/quickplotter.py	58.91% 🙂	59.08% 🙂	0.17% 👍
gdsfactory/tech.py	73.19% 🙂	70.20% 🙂	-2.99% 👎
gdsfactory/write_cells.py	71.43% 🙂	66.86% 🙂	-4.57% 👎
gdsfactory/components/straight_heater_doped_rib.py	21.92% ⛔	21.92% ⛔	0.00%
gdsfactory/components/straight_heater_meander.py	34.03% 😞	34.03% 😞	0.00%
gdsfactory/geometry/write_drc.py	71.69% 🙂	71.05% 🙂	-0.64% 👎

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
gdsfactory/quickplotter.py	quickplot	57 ⛔	533 ⛔	21 ⛔	6.01% ⛔	Refactor to reduce nesting. Try splitting into smaller methods. Extract out complex expressions
gdsfactory/components/straight_heater_doped_rib.py	straight_heater_doped_rib	27 😞	421 ⛔	33 ⛔	12.63% ⛔	Refactor to reduce nesting. Try splitting into smaller methods. Extract out complex expressions
gdsfactory/quickplotter.py	quickplot2	40 ⛔	242 ⛔	11 😞	26.01% 😞	Refactor to reduce nesting. Try splitting into smaller methods. Extract out complex expressions
gdsfactory/components/straight_heater_meander.py	straight_heater_meander	7 ⭐	505 ⛔	28 ⛔	28.10% 😞	Try splitting into smaller methods. Extract out complex expressions
gdsfactory/component.py	Component.add_port	15 🙂	212 ⛔	23 ⛔	29.69% 😞	Try splitting into smaller methods. Extract out complex expressions

Legend and Explanation

The emojis denote the absolute quality of the code:

• ⭐ excellent
• 🙂 good
• 😞 poor
• ⛔ very poor

The 👍 and 👎 indicate whether the quality has improved or gotten worse with this pull request.

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Please see our documentation here for details on how these metrics are calculated.

We are actively working on this report - lots more documentation and extra metrics to come!

Help us improve this quality report!

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication