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a498c131
编写于
11月 29, 2020
作者:
P
Pradyun Gedam
提交者:
GitHub
11月 29, 2020
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Merge pull request #9174 from pradyunsg/tweaks-to-migration-guide
Expand on troubleshooting steps in resolver migration guide
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a498c131
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@@ -1747,10 +1747,21 @@ How to upgrade and migrate
deliver part of your functionality, please test your integration
with pip 20.3.
4. **Temporarily use the old resolver when necessary.** If you run
into resolution errors and need a workaround while you'
re
fixing
their
root
causes
,
you
can
choose
the
old
resolver
behavior
using
the
flag
``--
use
-
deprecated
=
legacy
-
resolver
``.
4. **Troubleshoot and try these workarounds if necessary.**
- If pip is taking longer to install packages, read
:ref:`Dependency resolution backtracking` for ways to reduce the
time pip spends backtracking due to dependency conflicts.
- If you don'
t
want
pip
to
actually
resolve
dependencies
,
use
the
``--
no
-
deps
``
option
.
This
is
useful
when
you
have
a
set
of
package
versions
that
work
together
in
reality
,
even
though
their
metadata
says
that
they
conflict
.
For
guidance
on
a
long
-
term
fix
,
read
:
ref
:`
Fixing
conflicting
dependencies
`.
-
If
you
run
into
resolution
errors
and
need
a
workaround
while
you
're
fixing their root causes, you can choose the old resolver behavior using
the flag ``--use-deprecated=legacy-resolver``. This will work until we
release pip 21.0 (see
:ref:`Deprecation timeline for 2020 resolver changes`).
5. **Please report bugs** through the `resolver testing survey`_.
...
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