tests/testthat/_snaps/py_require.md
In rstudio/reticulate: Interface to 'Python'
Error requesting conflicting package versions
Code
r_session(attach_namespace = TRUE, {
py_require("numpy<2")
py_require("numpy>=2")
uv_get_or_create_env()
})
Output
> py_require("numpy<2")
> py_require("numpy>=2")
> uv_get_or_create_env()
× No solution found when resolving `--with` dependencies:
╰─▶ Because you require numpy<2 and numpy>=2, we can conclude that your
requirements are unsatisfiable.
uv error code: 1
-- Current requirements -------------------------------------------------
Python: 3.11.11 (reticulate default)
Packages: numpy, numpy<2, numpy>=2
-------------------------------------------------------------------------
Error in uv_get_or_create_env() :
Call `py_require()` to remove or replace conflicting requirements.
Execution halted
------- session end -------
success: false
exit_code: 1
Setting py_require(python_version) after initializing Python
Code
r_session({
Sys.unsetenv("RETICULATE_PYTHON")
Sys.setenv(RETICULATE_USE_MANAGED_VENV = "yes")
pkg_py_require <- (function(...) reticulate::py_require(...))
pkg_py_require <- rlang::zap_srcref(pkg_py_require)
environment(pkg_py_require) <- asNamespace("stats")
library(reticulate)
py_require(python_version = ">=3.9", "pandas")
py_require(python_version = ">=3.8,<3.14")
py_require(python_version = "3.11")
pkg_py_require(packages = c("pandas", "numpy"), python_version = ">=3.10")
prefix <- import("sys")$prefix
import("numpy")
import("pandas")
stopifnot(py_version() == "3.11")
py_require(python_version = ">=3.9.1")
py_require(python_version = ">=3.8.1,<3.14")
py_require(python_version = "3.11")
pkg_py_require(python_version = ">=3.10")
py_require("numpy")
py_require("pandas")
py_require(c("numpy", "pandas"), action = "set")
py_require(c("notexist"), action = "remove")
try(import("requests"))
py_require("requests")
import("requests")
prefix2 <- import("sys")$prefix
stopifnot(prefix != prefix2)
pkg_py_require(python_version = ">=3.12")
pkg_py_require("pandas", action = "remove")
try(py_require(exclude_newer = "2020-01-01"))
try(py_require(python_version = ">=3.12"))
try(py_require("pandas", action = "remove"))
})
Output
> Sys.unsetenv("RETICULATE_PYTHON")
> Sys.setenv(RETICULATE_USE_MANAGED_VENV = "yes")
> pkg_py_require <- (function(...) reticulate::py_require(...))
> pkg_py_require <- rlang::zap_srcref(pkg_py_require)
> environment(pkg_py_require) <- asNamespace("stats")
> library(reticulate)
> py_require(python_version = ">=3.9", "pandas")
> py_require(python_version = ">=3.8,<3.14")
> py_require(python_version = "3.11")
> pkg_py_require(packages = c("pandas", "numpy"), python_version = ">=3.10")
> prefix <- import("sys")$prefix
> import("numpy")
Module(numpy)
> import("pandas")
Module(pandas)
> stopifnot(py_version() == "3.11")
> py_require(python_version = ">=3.9.1")
> py_require(python_version = ">=3.8.1,<3.14")
> py_require(python_version = "3.11")
> pkg_py_require(python_version = ">=3.10")
> py_require("numpy")
> py_require("pandas")
> py_require(c("numpy", "pandas"), action = "set")
> py_require(c("notexist"), action = "remove")
> try(import("requests"))
Error in py_module_import(module, convert = convert) :
ModuleNotFoundError: No module named 'requests'
Run `reticulate::py_last_error()` for details.
> py_require("requests")
> import("requests")
Module(requests)
> prefix2 <- import("sys")$prefix
> stopifnot(prefix != prefix2)
> pkg_py_require(python_version = ">=3.12")
Warning message:
In reticulate::py_require(...) :
Python version requirements cannot be changed after Python has been initialized.
* Python version request: '>=3.12' (from package:stats)
* Python version initialized: '3.11.11'
> pkg_py_require("pandas", action = "remove")
Warning message:
In reticulate::py_require(...) :
After Python has initialized, only `action = 'add'` is supported.
> try(py_require(exclude_newer = "2020-01-01"))
Error in py_require(exclude_newer = "2020-01-01") :
`exclude_newer` cannot be changed after Python has initialized.
> try(py_require(python_version = ">=3.12"))
Error in py_require(python_version = ">=3.12") :
Python version requirements cannot be changed after Python has been initialized.
* Python version request: '>=3.12'
* Python version initialized: '3.11.11'
> try(py_require("pandas", action = "remove"))
Error in py_require("pandas", action = "remove") :
After Python has initialized, only `action = 'add'` is supported.
>
------- session end -------
success: true
exit_code: 0
Error requesting a package that does not exists
Code
r_session(attach_namespace = TRUE, {
py_require(c("pandas", "numpy", "notexists"))
uv_get_or_create_env()
})
Output
> py_require(c("pandas", "numpy", "notexists"))
> uv_get_or_create_env()
× No solution found when resolving `--with` dependencies:
╰─▶ Because notexists was not found in the package registry and you require
notexists, we can conclude that your requirements are unsatisfiable.
uv error code: 1
-- Current requirements -------------------------------------------------
Python: 3.11.11 (reticulate default)
Packages: numpy, pandas, notexists
-------------------------------------------------------------------------
Error in uv_get_or_create_env() :
Call `py_require()` to remove or replace conflicting requirements.
Execution halted
------- session end -------
success: false
exit_code: 1
Error requesting conflicting Python versions
Code
r_session(attach_namespace = TRUE, {
py_require(python_version = ">=3.10")
py_require(python_version = "<3.10")
uv_get_or_create_env()
})
Output
> py_require(python_version = ">=3.10")
> py_require(python_version = "<3.10")
> uv_get_or_create_env()
Error in resolve_python_version(constraints = python_version, uv = uv) :
Requested Python version constraints could not be satisfied.
constraints: ">=3.10,<3.10"
Hint: Call `py_require(python_version = <string>, action = "set")` to replace constraints.
Calls: uv_get_or_create_env -> resolve_python_version
Execution halted
------- session end -------
success: false
exit_code: 1
Simple tests
Code
r_session(attach_namespace = TRUE, {
py_require("pandas")
py_require("numpy==2")
py_require()
})
Output
> py_require("pandas")
> py_require("numpy==2")
> py_require()
══════════════════════════ Python requirements ══════════════════════════
── Current requirements ─────────────────────────────────────────────────
Python: [No Python version specified. Will default to '3.11.11']
Packages: numpy, pandas, numpy==2
── R package requests ───────────────────────────────────────────────────
R package Python packages Python version
reticulate numpy
>
------- session end -------
success: true
exit_code: 0
Code
r_session(attach_namespace = TRUE, {
py_require("pandas")
py_require("numpy==2")
py_require("numpy==2", action = "remove")
py_require()
})
Output
> py_require("pandas")
> py_require("numpy==2")
> py_require("numpy==2", action = "remove")
> py_require()
══════════════════════════ Python requirements ══════════════════════════
── Current requirements ─────────────────────────────────────────────────
Python: [No Python version specified. Will default to '3.11.11']
Packages: numpy, pandas
── R package requests ───────────────────────────────────────────────────
R package Python packages Python version
reticulate numpy
>
------- session end -------
success: true
exit_code: 0
Code
r_session(attach_namespace = TRUE, {
py_require("pandas")
py_require("numpy==2")
py_require("numpy==2", action = "remove")
py_require(exclude_newer = "1990-01-01")
py_require()
})
Output
> py_require("pandas")
> py_require("numpy==2")
> py_require("numpy==2", action = "remove")
> py_require(exclude_newer = "1990-01-01")
> py_require()
══════════════════════════ Python requirements ══════════════════════════
── Current requirements ─────────────────────────────────────────────────
Python: [No Python version specified. Will default to '3.11.11']
Packages: numpy, pandas
Exclude: Anything newer than 1990-01-01
── R package requests ───────────────────────────────────────────────────
R package Python packages Python version
reticulate numpy
>
------- session end -------
success: true
exit_code: 0
Code
r_session(attach_namespace = TRUE, {
py_require("pandas")
py_require("numpy==2")
py_require("numpy==2", action = "remove")
py_require(exclude_newer = "1990-01-01")
py_require(python_version = c("<=3.11", ">=3.10"))
py_require()
})
Output
> py_require("pandas")
> py_require("numpy==2")
> py_require("numpy==2", action = "remove")
> py_require(exclude_newer = "1990-01-01")
> py_require(python_version = c("<=3.11", ">=3.10"))
> py_require()
══════════════════════════ Python requirements ══════════════════════════
── Current requirements ─────────────────────────────────────────────────
Python: <=3.11, >=3.10
Packages: numpy, pandas
Exclude: Anything newer than 1990-01-01
── R package requests ───────────────────────────────────────────────────
R package Python packages Python version
reticulate numpy
>
------- session end -------
success: true
exit_code: 0
Multiple py_require() calls from package are shows in one row
Code
r_session(attach_namespace = TRUE, {
gr_package <- (function() {
py_require(paste0("package", 1:20))
py_require(paste0("package", 1:10), action = "remove")
py_require(python_version = c("<=3.11", ">=3.10"))
})
environment(gr_package) <- asNamespace("graphics")
gr_package()
py_require()
})
Output
> gr_package <- (function() {
+ py_require(paste0("package", 1:20))
+ py_require(paste0("package", 1:10), action = "remove")
+ py_require(python_version = c("<=3.11", ">=3.10"))
+ })
> environment(gr_package) <- asNamespace("graphics")
> gr_package()
> py_require()
══════════════════════════ Python requirements ══════════════════════════
── Current requirements ─────────────────────────────────────────────────
Python: <=3.11, >=3.10
Packages: numpy, package11, package12, package13, package14,
package15, package16, package17, package18, package19,
package20
── R package requests ───────────────────────────────────────────────────
R package Python packages Python version
reticulate numpy
graphics package11, package12, package13, <=3.11, >=3.10
package14, package15, package16,
package17, package18, package19,
package20
>
------- session end -------
success: true
exit_code: 0
rstudio/reticulate documentation built on Feb. 26, 2025, 3:27 p.m.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Error requesting conflicting package versions
Code
r_session(attach_namespace = TRUE, {
py_require("numpy<2")
py_require("numpy>=2")
uv_get_or_create_env()
})
Output
> py_require("numpy<2")
> py_require("numpy>=2")
> uv_get_or_create_env()
× No solution found when resolving `--with` dependencies:
╰─▶ Because you require numpy<2 and numpy>=2, we can conclude that your
requirements are unsatisfiable.
uv error code: 1
-- Current requirements -------------------------------------------------
Python: 3.11.11 (reticulate default)
Packages: numpy, numpy<2, numpy>=2
-------------------------------------------------------------------------
Error in uv_get_or_create_env() :
Call `py_require()` to remove or replace conflicting requirements.
Execution halted
------- session end -------
success: false
exit_code: 1
Setting py_require(python_version) after initializing Python
Code
r_session({
Sys.unsetenv("RETICULATE_PYTHON")
Sys.setenv(RETICULATE_USE_MANAGED_VENV = "yes")
pkg_py_require <- (function(...) reticulate::py_require(...))
pkg_py_require <- rlang::zap_srcref(pkg_py_require)
environment(pkg_py_require) <- asNamespace("stats")
library(reticulate)
py_require(python_version = ">=3.9", "pandas")
py_require(python_version = ">=3.8,<3.14")
py_require(python_version = "3.11")
pkg_py_require(packages = c("pandas", "numpy"), python_version = ">=3.10")
prefix <- import("sys")$prefix
import("numpy")
import("pandas")
stopifnot(py_version() == "3.11")
py_require(python_version = ">=3.9.1")
py_require(python_version = ">=3.8.1,<3.14")
py_require(python_version = "3.11")
pkg_py_require(python_version = ">=3.10")
py_require("numpy")
py_require("pandas")
py_require(c("numpy", "pandas"), action = "set")
py_require(c("notexist"), action = "remove")
try(import("requests"))
py_require("requests")
import("requests")
prefix2 <- import("sys")$prefix
stopifnot(prefix != prefix2)
pkg_py_require(python_version = ">=3.12")
pkg_py_require("pandas", action = "remove")
try(py_require(exclude_newer = "2020-01-01"))
try(py_require(python_version = ">=3.12"))
try(py_require("pandas", action = "remove"))
})
Output
> Sys.unsetenv("RETICULATE_PYTHON")
> Sys.setenv(RETICULATE_USE_MANAGED_VENV = "yes")
> pkg_py_require <- (function(...) reticulate::py_require(...))
> pkg_py_require <- rlang::zap_srcref(pkg_py_require)
> environment(pkg_py_require) <- asNamespace("stats")
> library(reticulate)
> py_require(python_version = ">=3.9", "pandas")
> py_require(python_version = ">=3.8,<3.14")
> py_require(python_version = "3.11")
> pkg_py_require(packages = c("pandas", "numpy"), python_version = ">=3.10")
> prefix <- import("sys")$prefix
> import("numpy")
Module(numpy)
> import("pandas")
Module(pandas)
> stopifnot(py_version() == "3.11")
> py_require(python_version = ">=3.9.1")
> py_require(python_version = ">=3.8.1,<3.14")
> py_require(python_version = "3.11")
> pkg_py_require(python_version = ">=3.10")
> py_require("numpy")
> py_require("pandas")
> py_require(c("numpy", "pandas"), action = "set")
> py_require(c("notexist"), action = "remove")
> try(import("requests"))
Error in py_module_import(module, convert = convert) :
ModuleNotFoundError: No module named 'requests'
Run `reticulate::py_last_error()` for details.
> py_require("requests")
> import("requests")
Module(requests)
> prefix2 <- import("sys")$prefix
> stopifnot(prefix != prefix2)
> pkg_py_require(python_version = ">=3.12")
Warning message:
In reticulate::py_require(...) :
Python version requirements cannot be changed after Python has been initialized.
* Python version request: '>=3.12' (from package:stats)
* Python version initialized: '3.11.11'
> pkg_py_require("pandas", action = "remove")
Warning message:
In reticulate::py_require(...) :
After Python has initialized, only `action = 'add'` is supported.
> try(py_require(exclude_newer = "2020-01-01"))
Error in py_require(exclude_newer = "2020-01-01") :
`exclude_newer` cannot be changed after Python has initialized.
> try(py_require(python_version = ">=3.12"))
Error in py_require(python_version = ">=3.12") :
Python version requirements cannot be changed after Python has been initialized.
* Python version request: '>=3.12'
* Python version initialized: '3.11.11'
> try(py_require("pandas", action = "remove"))
Error in py_require("pandas", action = "remove") :
After Python has initialized, only `action = 'add'` is supported.
>
------- session end -------
success: true
exit_code: 0
Error requesting a package that does not exists
Code
r_session(attach_namespace = TRUE, {
py_require(c("pandas", "numpy", "notexists"))
uv_get_or_create_env()
})
Output
> py_require(c("pandas", "numpy", "notexists"))
> uv_get_or_create_env()
× No solution found when resolving `--with` dependencies:
╰─▶ Because notexists was not found in the package registry and you require
notexists, we can conclude that your requirements are unsatisfiable.
uv error code: 1
-- Current requirements -------------------------------------------------
Python: 3.11.11 (reticulate default)
Packages: numpy, pandas, notexists
-------------------------------------------------------------------------
Error in uv_get_or_create_env() :
Call `py_require()` to remove or replace conflicting requirements.
Execution halted
------- session end -------
success: false
exit_code: 1
Error requesting conflicting Python versions
Code
r_session(attach_namespace = TRUE, {
py_require(python_version = ">=3.10")
py_require(python_version = "<3.10")
uv_get_or_create_env()
})
Output
> py_require(python_version = ">=3.10")
> py_require(python_version = "<3.10")
> uv_get_or_create_env()
Error in resolve_python_version(constraints = python_version, uv = uv) :
Requested Python version constraints could not be satisfied.
constraints: ">=3.10,<3.10"
Hint: Call `py_require(python_version = <string>, action = "set")` to replace constraints.
Calls: uv_get_or_create_env -> resolve_python_version
Execution halted
------- session end -------
success: false
exit_code: 1
Simple tests
Code
r_session(attach_namespace = TRUE, {
py_require("pandas")
py_require("numpy==2")
py_require()
})
Output
> py_require("pandas")
> py_require("numpy==2")
> py_require()
══════════════════════════ Python requirements ══════════════════════════
── Current requirements ─────────────────────────────────────────────────
Python: [No Python version specified. Will default to '3.11.11']
Packages: numpy, pandas, numpy==2
── R package requests ───────────────────────────────────────────────────
R package Python packages Python version
reticulate numpy
>
------- session end -------
success: true
exit_code: 0
Code
r_session(attach_namespace = TRUE, {
py_require("pandas")
py_require("numpy==2")
py_require("numpy==2", action = "remove")
py_require()
})
Output
> py_require("pandas")
> py_require("numpy==2")
> py_require("numpy==2", action = "remove")
> py_require()
══════════════════════════ Python requirements ══════════════════════════
── Current requirements ─────────────────────────────────────────────────
Python: [No Python version specified. Will default to '3.11.11']
Packages: numpy, pandas
── R package requests ───────────────────────────────────────────────────
R package Python packages Python version
reticulate numpy
>
------- session end -------
success: true
exit_code: 0
Code
r_session(attach_namespace = TRUE, {
py_require("pandas")
py_require("numpy==2")
py_require("numpy==2", action = "remove")
py_require(exclude_newer = "1990-01-01")
py_require()
})
Output
> py_require("pandas")
> py_require("numpy==2")
> py_require("numpy==2", action = "remove")
> py_require(exclude_newer = "1990-01-01")
> py_require()
══════════════════════════ Python requirements ══════════════════════════
── Current requirements ─────────────────────────────────────────────────
Python: [No Python version specified. Will default to '3.11.11']
Packages: numpy, pandas
Exclude: Anything newer than 1990-01-01
── R package requests ───────────────────────────────────────────────────
R package Python packages Python version
reticulate numpy
>
------- session end -------
success: true
exit_code: 0
Code
r_session(attach_namespace = TRUE, {
py_require("pandas")
py_require("numpy==2")
py_require("numpy==2", action = "remove")
py_require(exclude_newer = "1990-01-01")
py_require(python_version = c("<=3.11", ">=3.10"))
py_require()
})
Output
> py_require("pandas")
> py_require("numpy==2")
> py_require("numpy==2", action = "remove")
> py_require(exclude_newer = "1990-01-01")
> py_require(python_version = c("<=3.11", ">=3.10"))
> py_require()
══════════════════════════ Python requirements ══════════════════════════
── Current requirements ─────────────────────────────────────────────────
Python: <=3.11, >=3.10
Packages: numpy, pandas
Exclude: Anything newer than 1990-01-01
── R package requests ───────────────────────────────────────────────────
R package Python packages Python version
reticulate numpy
>
------- session end -------
success: true
exit_code: 0
Multiple py_require() calls from package are shows in one row
Code
r_session(attach_namespace = TRUE, {
gr_package <- (function() {
py_require(paste0("package", 1:20))
py_require(paste0("package", 1:10), action = "remove")
py_require(python_version = c("<=3.11", ">=3.10"))
})
environment(gr_package) <- asNamespace("graphics")
gr_package()
py_require()
})
Output
> gr_package <- (function() {
+ py_require(paste0("package", 1:20))
+ py_require(paste0("package", 1:10), action = "remove")
+ py_require(python_version = c("<=3.11", ">=3.10"))
+ })
> environment(gr_package) <- asNamespace("graphics")
> gr_package()
> py_require()
══════════════════════════ Python requirements ══════════════════════════
── Current requirements ─────────────────────────────────────────────────
Python: <=3.11, >=3.10
Packages: numpy, package11, package12, package13, package14,
package15, package16, package17, package18, package19,
package20
── R package requests ───────────────────────────────────────────────────
R package Python packages Python version
reticulate numpy
graphics package11, package12, package13, <=3.11, >=3.10
package14, package15, package16,
package17, package18, package19,
package20
>
------- session end -------
success: true
exit_code: 0
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Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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