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weecology / retriever

Quickly download, clean up, and install public datasets into a database management system
http://data-retriever.org
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Problems with rdataretriever installation on Windows #1390

Closed ahhurlbert closed 5 years ago

ahhurlbert commented 5 years ago

Hi @ethanwhite @henrykironde

It's my annual "trying to get undergrads up and running with Rdataretriever for a class exercise" problem. I want to make it as simple as possible for them to get up and running, and would prefer NOT to assume that they have Python or, in the case of Windows, a special terminal program like Git Bash.

So ideally, they download the installers from data-retriever.org, follow instructions on that page, then install.packages() in R and they are off and running. I've tried this on a new Windows machine (i.e. that did not previously have Retriever installed), and ran into problems, maybe PATH related, or maybe just lack-of-Python related (my test machine has no Python installed).

In RStudio, I get 

> rdataretriever::datasets()
Error in initialize_python(required_module, use_environment) : 
  Installation of Python not found, Python bindings not loaded.

Checking from the shell, which retriever returns /c/Program Files (x86)/DataRetriever/retriever, and retriever ls returns

Failed to load script: biotime (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'latin' is not defined
Failed to load script: catalogos_dados_brasil (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'utf' is not defined
Failed to load script: forest_plots_michigan (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'latin' is not defined
Failed to load script: mt_st_helens_veg (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'latin' is not defined
Failed to load script: nla (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'UTF' is not defined
Failed to load script: prairie_forest (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'UTF' is not defined
Failed to load script: prism_climate (C:\Users\hurlbert/.retriever/scripts/)
Exception: No module named 'requests'
Failed to load script: sonoran_desert (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'ISO' is not defined
Failed to load script: transparencia_dados_abertos_brasil (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'utf' is not defined
Failed to load script: usgs_elevation (C:\Users\hurlbert/.retriever/scripts/)
Exception: No module named 'requests'
Failed to load script: veg_plots_sdl (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'latin' is not defined
Failed to load script: biotime (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'latin' is not defined
Failed to load script: catalogos_dados_brasil (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'utf' is not defined
Failed to load script: forest_plots_michigan (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'latin' is not defined
Failed to load script: mt_st_helens_veg (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'latin' is not defined
Failed to load script: nla (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'UTF' is not defined
Failed to load script: prairie_forest (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'UTF' is not defined
Failed to load script: prism_climate (C:\Users\hurlbert/.retriever/scripts/)
Exception: No module named 'requests'
Failed to load script: sonoran_desert (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'ISO' is not defined
Failed to load script: transparencia_dados_abertos_brasil (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'utf' is not defined
Failed to load script: usgs_elevation (C:\Users\hurlbert/.retriever/scripts/)
Exception: No module named 'requests'
Failed to load script: veg_plots_sdl (C:\Users\hurlbert/.retriever/scripts/)
Exception: name 'latin' is not defined
biotimesql is supported by Retriever version 2.2.0
Current version is v2.0.0
fao_global_capture_product is supported by Retriever version 2.1.dev
Current version is v2.0.0
nd_gain is supported by Retriever version 2.1.dev
Current version is v2.0.0
noaa_fisheries_trade is supported by Retriever version 2.1.dev
Current version is v2.0.0
partners_in_flight is supported by Retriever version 2.1.dev
Current version is v2.0.0
biotimesql is supported by Retriever version 2.2.0
Current version is v2.0.0
fao_global_capture_product is supported by Retriever version 2.1.dev
Current version is v2.0.0
nd_gain is supported by Retriever version 2.1.dev
Current version is v2.0.0
noaa_fisheries_trade is supported by Retriever version 2.1.dev
Current version is v2.0.0
partners_in_flight is supported by Retriever version 2.1.dev
Current version is v2.0.0
Available datasets : 82

abalone-age
acton-lake
airports
amniote-life-hist
antarctic-breed-bird
aquatic-animal-excretion
biodiversity-response
biomass-allometry-db
bird-migration-data
bird-size
breast-cancer-wi
breed-bird-survey
breed-bird-survey-50stop
breed-bird-survey-nlcd
bupa-liver-disorders
butterfly-population-network
car-eval
chytr-disease-distr
community-abundance-misc
croche-vegetation-data
dicerandra-frutescens
elton-traits
fish-parasite-hosts
flensburg-food-web
forest-biomass-china
forest-fires-portugal
forest-inventory-analysis
forest-plots-wghats
fray-jorge-ecology
gdp
gentry-forest-transects
great-basin-mammal-abundance
home-ranges
intertidal-abund-me
iris
la-selva-trees
leaf-herbivory
macroalgal-communities
macrocystis-variation
mammal-community-db
mammal-diet
mammal-life-hist
mammal-masses
mammal-metabolic-rate
mammal-super-tree
mapped-plant-quads-co
mapped-plant-quads-id
mapped-plant-quads-ks
mapped-plant-quads-mt
marine-recruitment-data
mediter-basin-plant-traits
nematode-traits
ngreatplains-flowering-dates
npn
nyc-tree-count
pantheria
phytoplankton-size
plant-comp-ok
plant-life-hist-eu
plant-occur-oosting
plant-taxonomy-us
poker-hands
portal
portal-dev
predator-prey-body-ratio
predator-prey-size-marine
predicts
socean-diet-data
species-exctinction-rates
streamflow-conditions
tree-canopy-geometries
tree-demog-wghats
turtle-offspring-nesting
vertnet
vertnet-amphibians
vertnet-birds
vertnet-fishes
vertnet-mammals
vertnet-reptiles
wine-composition
wine-quality
wood-density

I'm probably just mis-remembering, but I don't remember telling my students in previous years that they also had to install Python for this to work. I can of course, but it's an extra step that of course can lead to additional troubleshooting in a large class. Can you provide your suggested "easy-for-undergrads" installation steps?

Thanks!

henrykironde commented 5 years ago

I will let Ethan have a look into this first, he uses it for his classes too

ethanwhite commented 5 years ago

Hey @ahhurlbert - we've been moving away from the installers as part of our shift to using reticulate over the last year. The idea is to to rely on the core packaging systems while also minimizing the need for R users to think about Python.

Can you take a look at https://github.com/ropensci/rdataretriever#installation and see if this fits the "easy-for-undergrads" bill? Basically it involves running a standard graphically installer for Python and then running the following lines all in R:

install.packages("reticulate")
library(reticulate)
py_available(initialize = TRUE)
py_install("retriever")
install.packages("rdataretriever")

If this isn't simple enough can you let us know what your timeline is and we can chat some more.

ahhurlbert commented 5 years ago

This sounds like a great and manageable solution! EXCEPT...

> install.packages("reticulate")
Installing package into ‘C:/Users/hurlbert/Documents/R/win-library/3.5’
(as ‘lib’ is unspecified)
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.5/reticulate_1.13.zip'
Content type 'application/zip' length 1632573 bytes (1.6 MB)
downloaded 1.6 MB

package ‘reticulate’ successfully unpacked and MD5 sums checked

The downloaded binary packages are in
    C:\Users\hurlbert\AppData\Local\Temp\Rtmp8YMV3o\downloaded_packages
> library(reticulate)
> py_available(initialize = TRUE)
[1] TRUE
> py_install("retriever")
Collecting package metadata (current_repodata.json): ...working... done
Solving environment: ...working... done

## Package Plan ##

  environment location: C:\Users\hurlbert\AppData\Local\CONTIN~1\MINICO~1\envs\r-reticulate

Preparing transaction: ...working... done
Verifying transaction: ...working... done
Executing transaction: ...working... done

==> WARNING: A newer version of conda exists. <==
  current version: 4.7.10
  latest version: 4.7.12

Please update conda by running

    $ conda update -n base -c defaults conda

#
# To activate this environment, use
#
#     $ conda activate r-reticulate
#
# To deactivate an active environment, use
#
#     $ conda deactivate

Collecting package metadata (current_repodata.json): ...working... done
Solving environment: ...working... done

## Package Plan ##

  environment location: C:\Users\hurlbert\AppData\Local\CONTIN~1\MINICO~1\envs\r-reticulate

  added / updated specs:
    - retriever

The following packages will be downloaded:

    package                    |            build
    ---------------------------|-----------------
    argcomplete-1.10.0         |             py_0          31 KB  conda-forge
    asn1crypto-0.24.0          |        py36_1003         154 KB  conda-forge
    atomicwrites-1.3.0         |             py_0           9 KB  conda-forge
    attrs-19.1.0               |             py_0          32 KB  conda-forge
    ca-certificates-2019.9.11  |       hecc5488_0         181 KB  conda-forge
    certifi-2019.9.11          |           py36_0         147 KB  conda-forge
    cffi-1.12.3                |   py36hb32ad35_0         219 KB  conda-forge
    chardet-3.0.4              |        py36_1003         209 KB  conda-forge
    colorama-0.4.1             |             py_0          15 KB  conda-forge
    cryptography-2.7           |   py36hb32ad35_0         553 KB  conda-forge
    future-0.17.1              |        py36_1000         697 KB  conda-forge
    idna-2.8                   |        py36_1000         132 KB  conda-forge
    importlib_metadata-0.23    |           py36_0          39 KB  conda-forge
    intel-openmp-2019.4        |              245         1.4 MB
    libblas-3.8.0              |           12_mkl         3.5 MB  conda-forge
    libcblas-3.8.0             |           12_mkl         3.5 MB  conda-forge
    liblapack-3.8.0            |           12_mkl         3.5 MB  conda-forge
    mkl-2019.4                 |              245        99.2 MB
    more-itertools-7.2.0       |             py_0          48 KB  conda-forge
    numpy-1.17.2               |   py36hc71023c_0         4.7 MB  conda-forge
    openssl-1.1.1c             |       hfa6e2cd_0         4.7 MB  conda-forge
    packaging-19.2             |             py_0          27 KB  conda-forge
    pandas-0.25.1              |   py36he350917_0         9.6 MB  conda-forge
    pip-19.2.3                 |           py36_0         1.9 MB  conda-forge
    pluggy-0.12.0              |             py_0          18 KB  conda-forge
    py-1.8.0                   |             py_0          65 KB  conda-forge
    pycparser-2.19             |           py36_1         173 KB  conda-forge
    pymysql-0.9.3              |             py_0          41 KB  conda-forge
    pyopenssl-19.0.0           |           py36_0          81 KB  conda-forge
    pyparsing-2.4.2            |             py_0          57 KB  conda-forge
    pysocks-1.7.1              |           py36_0          26 KB  conda-forge
    pytest-5.1.2               |           py36_0         368 KB  conda-forge
    python-3.6.7               |    he025d50_1005        20.7 MB  conda-forge
    python-dateutil-2.8.0      |             py_0         219 KB  conda-forge
    pytz-2019.2                |             py_0         228 KB  conda-forge
    requests-2.22.0            |           py36_1          84 KB  conda-forge
    retriever-2.4.0            |             py_0          54 KB  conda-forge
    setuptools-41.2.0          |           py36_0         656 KB  conda-forge
    six-1.12.0                 |        py36_1000          21 KB  conda-forge
    tqdm-4.36.1                |             py_0          43 KB  conda-forge
    urllib3-1.25.6             |           py36_0         160 KB  conda-forge
    vs2015_runtime-14.16.27012 |       hf0eaf9b_0         1.1 MB
    wcwidth-0.1.7              |             py_1          17 KB  conda-forge
    wheel-0.33.6               |           py36_0          52 KB  conda-forge
    win_inet_pton-1.1.0        |           py36_0           7 KB  conda-forge
    wincertstore-0.2           |        py36_1002          13 KB  conda-forge
    xlrd-1.2.0                 |             py_0         108 KB  conda-forge
    zipp-0.6.0                 |             py_0           7 KB  conda-forge
    ------------------------------------------------------------
                                           Total:       158.9 MB

The following NEW packages will be INSTALLED:

  argcomplete        conda-forge/noarch::argcomplete-1.10.0-py_0
  asn1crypto         conda-forge/win-64::asn1crypto-0.24.0-py36_1003
  atomicwrites       conda-forge/noarch::atomicwrites-1.3.0-py_0
  attrs              conda-forge/noarch::attrs-19.1.0-py_0
  ca-certificates    conda-forge/win-64::ca-certificates-2019.9.11-hecc5488_0
  certifi            conda-forge/win-64::certifi-2019.9.11-py36_0
  cffi               conda-forge/win-64::cffi-1.12.3-py36hb32ad35_0
  chardet            conda-forge/win-64::chardet-3.0.4-py36_1003
  colorama           conda-forge/noarch::colorama-0.4.1-py_0
  cryptography       conda-forge/win-64::cryptography-2.7-py36hb32ad35_0
  future             conda-forge/win-64::future-0.17.1-py36_1000
  idna               conda-forge/win-64::idna-2.8-py36_1000
  importlib_metadata conda-forge/win-64::importlib_metadata-0.23-py36_0
  intel-openmp       pkgs/main/win-64::intel-openmp-2019.4-245
  libblas            conda-forge/win-64::libblas-3.8.0-12_mkl
  libcblas           conda-forge/win-64::libcblas-3.8.0-12_mkl
  liblapack          conda-forge/win-64::liblapack-3.8.0-12_mkl
  mkl                pkgs/main/win-64::mkl-2019.4-245
  more-itertools     conda-forge/noarch::more-itertools-7.2.0-py_0
  numpy              conda-forge/win-64::numpy-1.17.2-py36hc71023c_0
  openssl            conda-forge/win-64::openssl-1.1.1c-hfa6e2cd_0
  packaging          conda-forge/noarch::packaging-19.2-py_0
  pandas             conda-forge/win-64::pandas-0.25.1-py36he350917_0
  pip                conda-forge/win-64::pip-19.2.3-py36_0
  pluggy             conda-forge/noarch::pluggy-0.12.0-py_0
  py                 conda-forge/noarch::py-1.8.0-py_0
  pycparser          conda-forge/win-64::pycparser-2.19-py36_1
  pymysql            conda-forge/noarch::pymysql-0.9.3-py_0
  pyopenssl          conda-forge/win-64::pyopenssl-19.0.0-py36_0
  pyparsing          conda-forge/noarch::pyparsing-2.4.2-py_0
  pysocks            conda-forge/win-64::pysocks-1.7.1-py36_0
  pytest             conda-forge/win-64::pytest-5.1.2-py36_0
  python             conda-forge/win-64::python-3.6.7-he025d50_1005
  python-dateutil    conda-forge/noarch::python-dateutil-2.8.0-py_0
  pytz               conda-forge/noarch::pytz-2019.2-py_0
  requests           conda-forge/win-64::requests-2.22.0-py36_1
  retriever          conda-forge/noarch::retriever-2.4.0-py_0
  setuptools         conda-forge/win-64::setuptools-41.2.0-py36_0
  six                conda-forge/win-64::six-1.12.0-py36_1000
  tqdm               conda-forge/noarch::tqdm-4.36.1-py_0
  urllib3            conda-forge/win-64::urllib3-1.25.6-py36_0
  vc                 pkgs/main/win-64::vc-14.1-h0510ff6_4
  vs2015_runtime     pkgs/main/win-64::vs2015_runtime-14.16.27012-hf0eaf9b_0
  wcwidth            conda-forge/noarch::wcwidth-0.1.7-py_1
  wheel              conda-forge/win-64::wheel-0.33.6-py36_0
  win_inet_pton      conda-forge/win-64::win_inet_pton-1.1.0-py36_0
  wincertstore       conda-forge/win-64::wincertstore-0.2-py36_1002
  xlrd               conda-forge/noarch::xlrd-1.2.0-py_0
  zipp               conda-forge/noarch::zipp-0.6.0-py_0

Downloading and Extracting Packages
six-1.12.0           | 21 KB     | ########## | 100% 
pyopenssl-19.0.0     | 81 KB     | ########## | 100% 
liblapack-3.8.0      | 3.5 MB    | ########## | 100% 
pytest-5.1.2         | 368 KB    | ########## | 100% 
colorama-0.4.1       | 15 KB     | ########## | 100% 
python-dateutil-2.8. | 219 KB    | ########## | 100% 
wincertstore-0.2     | 13 KB     | ########## | 100% 
pandas-0.25.1        | 9.6 MB    | ########## | 100% 
python-3.6.7         | 20.7 MB   | ########## | 100% 
certifi-2019.9.11    | 147 KB    | ########## | 100% 
pip-19.2.3           | 1.9 MB    | ########## | 100% 
libblas-3.8.0        | 3.5 MB    | ########## | 100% 
cryptography-2.7     | 553 KB    | ########## | 100% 
openssl-1.1.1c       | 4.7 MB    | ########## | 100% 
wcwidth-0.1.7        | 17 KB     | ########## | 100% 
numpy-1.17.2         | 4.7 MB    | ########## | 100% 
atomicwrites-1.3.0   | 9 KB      | ########## | 100% 
pymysql-0.9.3        | 41 KB     | ########## | 100% 
pluggy-0.12.0        | 18 KB     | ########## | 100% 
more-itertools-7.2.0 | 48 KB     | ########## | 100% 
packaging-19.2       | 27 KB     | ########## | 100% 
idna-2.8             | 132 KB    | ########## | 100% 
requests-2.22.0      | 84 KB     | ########## | 100% 
zipp-0.6.0           | 7 KB      | ########## | 100% 
tqdm-4.36.1          | 43 KB     | ########## | 100% 
future-0.17.1        | 697 KB    | ########## | 100% 
cffi-1.12.3          | 219 KB    | ########## | 100% 
ca-certificates-2019 | 181 KB    | ########## | 100% 
intel-openmp-2019.4  | 1.4 MB    | ########## | 100% 
pytz-2019.2          | 228 KB    | ########## | 100% 
pysocks-1.7.1        | 26 KB     | ########## | 100% 
vs2015_runtime-14.16 | 1.1 MB    | ########## | 100% 
retriever-2.4.0      | 54 KB     | ########## | 100% 
asn1crypto-0.24.0    | 154 KB    | ########## | 100% 
importlib_metadata-0 | 39 KB     | ########## | 100% 
wheel-0.33.6         | 52 KB     | ########## | 100% 
xlrd-1.2.0           | 108 KB    | ########## | 100% 
pycparser-2.19       | 173 KB    | ########## | 100% 
py-1.8.0             | 65 KB     | ########## | 100% 
chardet-3.0.4        | 209 KB    | ########## | 100% 
argcomplete-1.10.0   | 31 KB     | ########## | 100% 
win_inet_pton-1.1.0  | 7 KB      | ########## | 100% 
urllib3-1.25.6       | 160 KB    | ########## | 100% 
pyparsing-2.4.2      | 57 KB     | ########## | 100% 
libcblas-3.8.0       | 3.5 MB    | ########## | 100% 
attrs-19.1.0         | 32 KB     | ########## | 100% 
setuptools-41.2.0    | 656 KB    | ########## | 100% 
mkl-2019.4           | 99.2 MB   | ########## | 100% 
Preparing transaction: ...working... done
Verifying transaction: ...working... done
Executing transaction: ...working... done

==> WARNING: A newer version of conda exists. <==
  current version: 4.7.10
  latest version: 4.7.12

Please update conda by running

    $ conda update -n base -c defaults conda

Warning message:
In normalizePath(path.expand(path), winslash, mustWork) :
  path[1]="C:\Users\hurlbert\AppData\Local\Continuum\miniconda3\envs\r-reticulate/python.exe": The system cannot find the file specified
> install.packages("rdataretriever")
Installing package into ‘C:/Users/hurlbert/Documents/R/win-library/3.5’
(as ‘lib’ is unspecified)
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.5/rdataretriever_2.0.0.zip'
Content type 'application/zip' length 51995 bytes (50 KB)
downloaded 50 KB

package ‘rdataretriever’ successfully unpacked and MD5 sums checked

The downloaded binary packages are in
    C:\Users\hurlbert\AppData\Local\Temp\Rtmp8YMV3o\downloaded_packages
> library(rdataretriever)
> rdataretriever::datasets()
Error in py_module_import(module, convert = convert) : 
  ModuleNotFoundError: No module named 'retriever'
> sessionInfo()
R version 3.5.3 (2019-03-11)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252    LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                           LC_TIME=English_United States.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
 [1] rdataretriever_2.0.0 reticulate_1.13      sp_1.3-1             sf_0.7-7             tmap_2.3            
 [6] tidyr_0.8.3          scales_1.0.0         rmarkdown_1.12       markdown_0.9         knitr_1.22          
[11] lubridate_1.7.4      dplyr_0.8.0.1       

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.1         lattice_0.20-38    class_7.3-15       assertthat_0.2.1   digest_0.6.18      utf8_1.1.4        
 [7] mime_0.6           R6_2.4.0           evaluate_0.13      e1071_1.7-2        httr_1.4.0         pillar_1.3.1      
[13] rlang_0.3.3        rstudioapi_0.10    raster_3.0-2       Matrix_1.2-15      rgdal_1.4-4        webshot_0.5.1     
[19] readr_1.3.1        stringr_1.4.0      htmlwidgets_1.3    munsell_0.5.0      tinytex_0.12       shiny_1.3.2       
[25] compiler_3.5.3     httpuv_1.5.1       xfun_0.6           pkgconfig_2.0.2    tmaptools_2.0-2    rgeos_0.5-1       
[31] htmltools_0.3.6    tidyselect_0.2.5   tibble_2.1.1       codetools_0.2-16   XML_3.98-1.19      fansi_0.4.0       
[37] viridisLite_0.3.0  crayon_1.3.4       later_0.8.0        grid_3.5.3         jsonlite_1.6       lwgeom_0.1-7      
[43] xtable_1.8-4       DBI_1.0.0          magrittr_1.5       units_0.6-4        KernSmooth_2.23-15 cli_1.1.0         
[49] stringi_1.4.3      promises_1.0.1     leafsync_0.1.0     leaflet_2.0.2      xml2_1.2.0         RColorBrewer_1.1-2
[55] tools_3.5.3        dichromat_2.0-0    glue_1.3.1         purrr_0.3.2        hms_0.4.2          crosstalk_1.0.0   
[61] yaml_2.2.0         colorspace_1.4-1   classInt_0.4-1     rvest_0.3.3
ethanwhite commented 5 years ago

Can you try restarting RStudio and see if that fixes things?

If not can you email me so that we can find some time for me to take a look and see what's going on?

ethanwhite commented 5 years ago

The reason the new instructions don't work turns out to be a bug in reticulate. The latest release does not work properly on Windows because it fails to load its own default r-reticulate environment.

Upgrading to their development version fixes this, so for now it is necessary to install reticulate using devtools.

devtools::install_github('rstudio/reticulate')
ethanwhite commented 5 years ago

Turns out this bug was original reported reported to reticulate two months ago: https://github.com/rstudio/reticulate/issues/571. I have re-reported it and asked about the possibility of a quick release: https://github.com/rstudio/reticulate/issues/601

@ahhurlbert - from reading in between the lines of that issue it's possible that install Anaconda instead of miniconda will solve the issue. I'm going to test now before I got to bed and see if that will solve the problem for you.

ethanwhite commented 5 years ago

Sadly Anaconda has the same issues. 🤞 for a new release of reticulate soon.

ethanwhite commented 5 years ago

Closing and replacing with a new issue over in https://github.com/ropensci/rdataretriever