Various dependency fixes (#621)

aiidalab_widgets_base/elns.py

@@ -2,7 +2,6 @@
 from pathlib import Path
 
 import ipywidgets as ipw
-import requests_cache
 import traitlets as tl
 from aiida import orm
 from IPython.display import clear_output, display
@@ -68,6 +67,8 @@ class ElnImportWidget(ipw.VBox):
     node = tl.Instance(orm.Node, allow_none=True)
 
     def __init__(self, path_to_root="../", **kwargs):
+        import requests_cache
+
         # Used to output additional settings.
         self._output = ipw.Output()
 
@@ -83,8 +84,9 @@ def __init__(self, path_to_root="../", **kwargs):
             return
 
         tl.dlink((eln, "node"), (self, "node"))
+        # Since the requests cache is enabled globally in aiidalab package, we disable it here to get correct results.
+        # This can be removed once https://github.com/aiidalab/aiidalab/issues/196 is fixed.
         with requests_cache.disabled():
-            # Since the cache is enabled in AiiDAlab, we disable it here to get correct results.
             eln.import_data()
 
 
@@ -151,10 +153,13 @@ def _observe_node(self, _=None):
         self.eln.set_sample_config(**info)
 
     def send_to_eln(self, _=None):
+        import requests_cache
+
         if self.eln and self.eln.is_connected:
             self.message.value = f"\u29d7 Sending data to {self.eln.eln_instance}..."
+            # Since the requests cache is enabled globally in aiidalab package, we disable it here to get correct results.
+            # This can be removed once https://github.com/aiidalab/aiidalab/issues/196 is fixed.
             with requests_cache.disabled():
-                # Since the cache is enabled in AiiDAlab, we disable it here to get correct results.
                 self.eln.export_data()
             self.message.value = (
                 f"\u2705 The data were successfully sent to {self.eln.eln_instance}."

aiidalab_widgets_base/nodes.py

@@ -7,7 +7,6 @@
 import traitlets as tl
 from aiida import common, engine, orm
 from aiida.cmdline.utils.ascii_vis import calc_info
-from aiidalab.app import _AiidaLabApp
 from IPython.display import clear_output, display
 
 CALCULATION_TYPES = [
@@ -319,6 +318,8 @@ def find_node(self, pk, namespaces=None):
 
 class _AppIcon:
     def __init__(self, app, path_to_root, node):
+        from aiidalab.app import _AiidaLabApp
+
         name = app["name"]
         app_object = _AiidaLabApp.from_id(name)
         self.logo = app_object.metadata["logo"]

setup.cfg

@@ -27,7 +27,7 @@ install_requires =
     bokeh~=2.0
     humanfriendly~=10.0
     ipytree~=0.2
-    traitlets~=5.9.0
+    traitlets~=5.9
     ipywidgets~=7.7
     widgetsnbextension<3.6.3
     pymysql~=0.9
@@ -54,6 +54,7 @@ optimade =
     ipyoptimade~=0.1
 eln =
     aiidalab-eln>=0.1.2,~=0.1
+    requests-cache~=1.0
 smiles =
     rdkit>=2021.09.2
     scikit-learn~=1.1