# Python-igraph 0.8.3

**URL:** <https://igraph.discourse.group/t/python-igraph-0-8-3/473>\
**Category:** Announcements\
**Tags:** Python\
**Created:** [8 October 2020 14:54 UTC](https://igraph.discourse.group/t/python-igraph-0-8-3/473 "2020-10-08T14:54:20Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![tamas](https://yyz2.discourse-cdn.com/free1/user_avatar/igraph.discourse.group/tamas/32/1261_2.png) [@tamas](https://igraph.discourse.group/u/tamas)\
**Post date:** [8 October 2020 14:54 UTC](https://igraph.discourse.group/t/python-igraph-0-8-3/473/1 "2020-10-08T14:54:21Z")

</div>

python-igraph 0.8.3, the third release the 0.8 series is now available. You can install it [from PyPI](https://pypi.org/project/python-igraph/0.8.3/) where we provide precompiled wheels for Python 3.6 to 3.9 on Linux, macOS and Windows.

You can find the [source code](https://github.com/igraph/python-igraph/) if you want to compile it on your own.

### Added

- `Graph.community_leiden()` now supports a negative number of iterations; it will keep on iterating until the algorithm reaches a stable partition.

- `Graph.Incidence()` now supports weighted graphs, thanks to @PuneethaPai (#303)

- You can now create a `Graph` object from a `pandas` dataframe with `Graph.DataFrame`, thanks to @iosonofabio (#309)

- Added conversion to/from `networkx` and `graph-tool` with `Graph.{to,from}_{networkx,graph_tool}`, thanks to @iosonofabio (#242)

- `Graph.add_edges()` and `Graph.add_vertices()` now supports specifying attributes for the newly added vertices and edges, thanks to @iosonofabio (#319)

- Added `Graph.dfs()` and `Graph.dfsiter()`, thanks to @iosonofabio (#315)

- Added `Graph.bridges()` to get the bridges of a graph.

- Added `Graph.clear()` to remove all edges, vertices and graph attributes in a single call, thanks to @iosonofabio (#320)

### Changed

- Upgraded igraph C library to 0.8.3.

- Graph union and intersection now supports graphs with vertex names, thanks to @iosonofabio (#310)

- `Graph.delete_vertices(None)` and `Graph.delete_edges(None)` are now deprecated; use `Graph.delete_vertices()` and `Graph.delete_edges()` (without a positional argument) instead to delete all vertices or edges. The old syntax will be removed in 0.9.

### Fixed

- `setup.py` now works on Windows with MinGW, thanks to @Parakoopa (#297)

- `Graph.difference()` now treats loop edges correctly

- `summary()` does not fail with non-string vertex names any more, thanks to @deeenes (#329)

- The Reingold-Tilford layout should not produce edge crossings on tree graphs any more.

- The postprocessing step of `Graph.biconnected_components()` is much faster now (#281); the earlier version was responsible for a significant speed difference between the C core and the Python interface.

### Other

- Various documentation improvements, thanks to @chrisfalter, @iosonofabio, @kmankinen, @remysucre, @szhorvat (#308, #313, #314, #323, #324, #334)

- `Graph.complementer()` now allows keyword arguments (it used to support positional arguments only).

- Dropped support for Python 3.5, added support for Python 3.9.

---

<div class="post-metadata">

**Author:** ![saulspatz](https://yyz2.discourse-cdn.com/free1/user_avatar/igraph.discourse.group/saulspatz/32/364_2.png) [@saulspatz](https://igraph.discourse.group/u/saulspatz)\
**Post date:** [8 October 2020 17:00 UTC](https://igraph.discourse.group/t/python-igraph-0-8-3/473/2 "2020-10-08T17:00:13Z")

</div>

On Mac with Mojave 10.14.6, I have python-igraph 0.8.2 installed. When I try to upgrade to version 0.8.3 by typing

```auto
pip3 install --upgrade igraph.python

```

it apparently tries to install version 0.7.4.  
The same thing happens if I try it without the `--upgrade` switch.

It says

```auto
Collecting igraph.python

Downloading igraph-python-0.7.4.tar.gz (377 kB)

>████████████████████████████████| 377 kB 821 kB/s

Building wheels for collected packages: igraph.python

Building wheel for igraph.python (setup.py) ... error

ERROR: Command errored out with exit status 1:

command: /usr/local/opt/python@3.8/bin/python3.8 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/tmp/pip-install-4y8u6twa/igraph.python/setup.py'"'"'; __file__ ='"'"'/private/tmp/pip-install-4y8u6twa/igraph.python/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)( __file__ );code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__ , '"'"'exec'"'"'))' bdist_wheel -d /private/tmp/pip-wheel-mhxb5qhs

cwd: /private/tmp/pip-install-4y8u6twa/igraph.python/

Complete output (91 lines):

running bdist_wheel

running build

running build_py

creating build

creating build/lib.macosx-10.14-x86_64-3.8

creating build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/configuration.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/clustering.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/compat.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/formula.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/layout.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/cut.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/ __init__.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/matching.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/summary.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/datatypes.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/utils.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

copying igraph/statistics.py -> build/lib.macosx-10.14-x86_64-3.8/igraph

creating build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/structural.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/colortests.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/attributes.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/rng.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/conversion.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/vertexseq.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/ __init__.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/flow.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/games.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/matching.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/generators.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/isomorphism.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/basic.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/utils.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/edgeseq.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/decomposition.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/iterators.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/spectral.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/separators.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/homepage.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/atlas.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/indexing.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/operators.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/layouts.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/cliques.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/foreign.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

copying igraph/test/bipartite.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/test

creating build/lib.macosx-10.14-x86_64-3.8/igraph/app

copying igraph/app/shell.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/app

copying igraph/app/ __init__.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/app

creating build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

copying igraph/drawing/shapes.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

copying igraph/drawing/edge.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

copying igraph/drawing/baseclasses.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

copying igraph/drawing/graph.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

copying igraph/drawing/coord.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

copying igraph/drawing/ __init__.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

copying igraph/drawing/vertex.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

copying igraph/drawing/utils.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

copying igraph/drawing/text.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

copying igraph/drawing/metamagic.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

copying igraph/drawing/colors.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/drawing

creating build/lib.macosx-10.14-x86_64-3.8/igraph/remote

copying igraph/remote/ __init__.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/remote

copying igraph/remote/nexus.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/remote

copying igraph/remote/gephi.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/remote

creating build/lib.macosx-10.14-x86_64-3.8/igraph/vendor

copying igraph/vendor/texttable.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/vendor

copying igraph/vendor/ __init__.py -> build/lib.macosx-10.14-x86_64-3.8/igraph/vendor

/usr/local/lib/python3.8/site-packages/setuptools/lib2to3_ex.py:39: SetuptoolsDeprecationWarning: 2to3 support is deprecated. If the project still requires Python 2 support, please migrate to a single-codebase solution or employ an independent conversion process.

warnings.warn(

Fixing build/lib.macosx-10.14-x86_64-3.8/igraph/configuration.py build/lib.macosx-10.14-x86_64-3.8/igraph/clustering.py build/lib.macosx-10.14-x86_64-3.8/igraph/compat.py build/lib.macosx-10.14-x86_64-3.8/igraph/formula.py build/lib.macosx-10.14-x86_64-3.8/igraph/layout.py build/lib.macosx-10.14-x86_64-3.8/igraph/cut.py build/lib.macosx-10.14-x86_64-3.8/igraph/ __init__.py build/lib.macosx-10.14-x86_64-3.8/igraph/matching.py build/lib.macosx-10.14-x86_64-3.8/igraph/summary.py build/lib.macosx-10.14-x86_64-3.8/igraph/datatypes.py build/lib.macosx-10.14-x86_64-3.8/igraph/utils.py build/lib.macosx-10.14-x86_64-3.8/igraph/statistics.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/structural.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/colortests.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/attributes.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/rng.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/conversion.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/vertexseq.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/ __init__.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/flow.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/games.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/matching.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/generators.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/isomorphism.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/basic.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/utils.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/edgeseq.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/decomposition.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/iterators.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/spectral.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/separators.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/homepage.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/atlas.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/indexing.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/operators.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/layouts.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/cliques.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/foreign.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/bipartite.py build/lib.macosx-10.14-x86_64-3.8/igraph/app/shell.py build/lib.macosx-10.14-x86_64-3.8/igraph/app/ __init__.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/shapes.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/edge.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/baseclasses.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/graph.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/coord.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/ __init__.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/vertex.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/utils.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/text.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/metamagic.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/colors.py build/lib.macosx-10.14-x86_64-3.8/igraph/remote/ __init__.py build/lib.macosx-10.14-x86_64-3.8/igraph/remote/nexus.py build/lib.macosx-10.14-x86_64-3.8/igraph/remote/gephi.py build/lib.macosx-10.14-x86_64-3.8/igraph/vendor/texttable.py build/lib.macosx-10.14-x86_64-3.8/igraph/vendor/ __init__.py

Skipping optional fixer: buffer

Skipping optional fixer: idioms

Skipping optional fixer: set_literal

Skipping optional fixer: ws_comma

Fixing build/lib.macosx-10.14-x86_64-3.8/igraph/configuration.py build/lib.macosx-10.14-x86_64-3.8/igraph/clustering.py build/lib.macosx-10.14-x86_64-3.8/igraph/compat.py build/lib.macosx-10.14-x86_64-3.8/igraph/formula.py build/lib.macosx-10.14-x86_64-3.8/igraph/layout.py build/lib.macosx-10.14-x86_64-3.8/igraph/cut.py build/lib.macosx-10.14-x86_64-3.8/igraph/ __init__.py build/lib.macosx-10.14-x86_64-3.8/igraph/matching.py build/lib.macosx-10.14-x86_64-3.8/igraph/summary.py build/lib.macosx-10.14-x86_64-3.8/igraph/datatypes.py build/lib.macosx-10.14-x86_64-3.8/igraph/utils.py build/lib.macosx-10.14-x86_64-3.8/igraph/statistics.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/structural.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/colortests.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/attributes.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/rng.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/conversion.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/vertexseq.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/ __init__.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/flow.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/games.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/matching.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/generators.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/isomorphism.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/basic.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/utils.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/edgeseq.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/decomposition.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/iterators.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/spectral.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/separators.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/homepage.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/atlas.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/indexing.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/operators.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/layouts.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/cliques.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/foreign.py build/lib.macosx-10.14-x86_64-3.8/igraph/test/bipartite.py build/lib.macosx-10.14-x86_64-3.8/igraph/app/shell.py build/lib.macosx-10.14-x86_64-3.8/igraph/app/ __init__.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/shapes.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/edge.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/baseclasses.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/graph.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/coord.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/ __init__.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/vertex.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/utils.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/text.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/metamagic.py build/lib.macosx-10.14-x86_64-3.8/igraph/drawing/colors.py build/lib.macosx-10.14-x86_64-3.8/igraph/remote/ __init__.py build/lib.macosx-10.14-x86_64-3.8/igraph/remote/nexus.py build/lib.macosx-10.14-x86_64-3.8/igraph/remote/gephi.py build/lib.macosx-10.14-x86_64-3.8/igraph/vendor/texttable.py build/lib.macosx-10.14-x86_64-3.8/igraph/vendor/ __init__.py

Skipping optional fixer: buffer

Skipping optional fixer: idioms

Skipping optional fixer: set_literal

Skipping optional fixer: ws_comma

running build_ext

Cannot find the C core of igraph on this system using pkg-config.

We will now try to download and compile the C core from scratch.

Version number of the C core: 0.7.4

We will also try: 0.7.4

Version 0.7.4 of the C core of igraph is not found among the nightly builds.

Use the --c-core-version switch to try a different version.

Could not download and compile the C core of igraph.

```

---

<div class="post-metadata">

**Author:** ![vtraag](https://yyz2.discourse-cdn.com/free1/user_avatar/igraph.discourse.group/vtraag/32/38_2.png) [@vtraag](https://igraph.discourse.group/u/vtraag)\
**Post date:** [8 October 2020 17:26 UTC](https://igraph.discourse.group/t/python-igraph-0-8-3/473/3 "2020-10-08T17:26:34Z")

</div>

You have to install `python-igraph`, not `igraph-python`.

---

<div class="post-metadata">

**Author:** ![saulspatz](https://yyz2.discourse-cdn.com/free1/user_avatar/igraph.discourse.group/saulspatz/32/364_2.png) [@saulspatz](https://igraph.discourse.group/u/saulspatz)\
**Post date:** [8 October 2020 17:49 UTC](https://igraph.discourse.group/t/python-igraph-0-8-3/473/4 "2020-10-08T17:49:14Z")

</div>

Duh, that worked fine. Thanks for your help.