[SteveBro]

OK... Here's what I did, along with the commands.

1. Cleared off all calibre files

--------------------------

2. Installed calibre from repositories:

[steve@SNB-ARCH12 bin]$ sudo pacman -S calibre
resolving dependencies...
looking for inter-conflicts...

Targets (1): calibre-0.8.36-1

Total Installed Size: 34.18 MiB

Proceed with installation? [Y/n] y
(1/1) checking package integrity [######################] 100%
(1/1) loading package files [######################] 100%
(1/1) checking for file conflicts [######################] 100%
(1/1) checking available disk space [######################] 100%
(1/1) installing calibre [######################] 100%
Optional dependencies for calibre
ipython: to use calibre-debug
---------------------------------------

3. Tried to run calibre:

[steve@SNB-ARCH12 bin]$ calibre
Traceback (most recent call last):
File "/usr/bin/calibre", line 18, in <module>
from calibre.gui2.main import main
File "/usr/lib/calibre/calibre/gui2/main.py", line 18, in <module>
from calibre.library.database2 import LibraryDatabase2
File "/usr/lib/calibre/calibre/library/database2.py", line 19, in <module>
from calibre.ebooks.metadata.opf2 import metadata_to_opf
File "/usr/lib/calibre/calibre/ebooks/metadata/opf2.py", line 20, in <module>
from calibre.ebooks.metadata.book.base import Metadata
File "/usr/lib/calibre/calibre/ebooks/metadata/book/base.py", line 17, in <module>
from calibre.library.field_metadata import FieldMetadata
File "/usr/lib/calibre/calibre/library/field_metadata.py", line 44, in <module>
class FieldMetadata(dict):
File "/usr/lib/calibre/calibre/library/field_metadata.py", line 140, in FieldMetadata
'name':ngettext('Series', 'Series', 2),
NameError: name 'ngettext' is not defined
-----------------------------------

4. Removed calibre

[steve@SNB-ARCH12 bin]$ sudo pacman -R calibre
checking dependencies...

Targets (1): calibre-0.8.36-1

Total Removed Size: 34.18 MiB

Do you want to remove these packages? [Y/n]
(1/1) removing calibre [######################] 100%
[steve@SNB-ARCH12 bin]$
--------------------------------

5. Installed calibre through your recommended method (selected default /opt location):

[steve@SNB-ARCH12 bin]$ sudo python -c "import sys; py3 = sys.version_info[0] > 2; u = __import__('urllib.request' if py3 else 'urllib', fromlist=1); exec(u.urlopen('http://status.calibre-ebook.com/linux_installer').read()); main()"
Enter the installation directory for calibre [/opt]:
Will download and install calibre-0.8.36-x86_64.tar.bz2
Downloading calibre-0.8.36-x86_64.tar.bz2
100% [================================================== ====================]
Downloaded 50355024 bytes
Checking downloaded file integrity...
Extracting files to /opt/calibre ...
Extracting application files...
Traceback (most recent call last):
File "site.py", line 56, in main
File "site-packages/calibre/linux.py", line 11, in <module>
File "site-packages/calibre/customize/ui.py", line 15, in <module>
File "site-packages/calibre/customize/builtins.py", line 12, in <module>
File "site-packages/calibre/ebooks/metadata/opf2.py", line 20, in <module>
File "site-packages/calibre/ebooks/metadata/book/base.py", line 17, in <module>
File "site-packages/calibre/library/field_metadata.py", line 44, in <module>
File "site-packages/calibre/library/field_metadata.py", line 140, in FieldMetadata
NameError: name 'ngettext' is not defined


You can automate future calibre installs by specifying the
installation directory in the install command itself, like
this:

sudo python -c "import sys; py3 = sys.version_info[0] > 2; u = __import__('urllib.request' if py3 else 'urllib', fromlist=1); exec(u.urlopen('http://status.calibre-ebook.com/linux_installer').read()); main(install_dir='/opt')"

Change /opt above to whatever directory you want calibre to be
automatically installed to


Run "calibre" to start calibre
---------------------------------------

6. Despite above error, tried to run calibre:

[steve@SNB-ARCH12 bin]$ /opt/calibre/calibre
Traceback (most recent call last):
File "site.py", line 56, in main
File "site-packages/calibre/gui2/main.py", line 18, in <module>
File "site-packages/calibre/library/database2.py", line 19, in <module>
File "site-packages/calibre/ebooks/metadata/opf2.py", line 20, in <module>
File "site-packages/calibre/ebooks/metadata/book/base.py", line 17, in <module>
File "site-packages/calibre/library/field_metadata.py", line 44, in <module>
File "site-packages/calibre/library/field_metadata.py", line 140, in FieldMetadata
NameError: name 'ngettext' is not defined
[steve@SNB-ARCH12 bin]$

-------------------

I must admit that I didn't look at line numbers.

Does this help identify any issues?